How to handle rainy-season dampness in the Roewe iMAX8: first check whether the hidden tracks, second-row trim covers, edge trim seals and factory fabric surface are damp, then re-inspect the drainage, ventilation and sealing points of the aluminum full-cabin hard fitting. For long-distance dedicated-service vehicles running in the southwestern plateau, the key is not to let moisture linger under the full-cabin flooring.
Why does dampness easily build up under the full-cabin flooring during the rainy season in the southwestern plateau?
Running from Chengdu toward western Sichuan in the rainy season, dampness usually isn't just a surface that wasn't wiped dry—most likely moisture is trapped under the full-cabin floor. Rain during the day and sunshine by evening, altitude rising to two or three thousand meters, temperatures dropping over ten degrees at night; the dedicated-service vehicle runs air conditioning the whole way, and passengers' shoe soles, rain gear and suitcase bottoms repeatedly bring water in. Aluminum doesn't absorb water, but it conducts heat fast; humid air sneaks under the panel and, when it hits the aluminum's underside that cools at night, fine condensation forms. Only when you feel along the edge trim the next day do you notice the dampness.
The Roewe iMAX8 is an MPV; after removing the seats, the entire cabin floor is covered, with hidden tracks, second-row trim covers, edge trim and sound-deadening layers forming multiple overlapping layers. Once the hard fitting is complete, surfaces are easier to wipe but the moisture outlets become narrower: water often seeps slowly along the door-side foot traffic area, seat mounting holes and edge trim seams, settling near the sound-deadening layer or the tracks. The factory sound-deadening layer holds some moisture, and once the aluminum panel covers it, the evaporation path gets longer; on long trips the air conditioning mainly blows into the seating area, leaving poor ventilation under the panels.
What owner-operators running dedicated service fear most is small amounts of water intrusion over several consecutive days, not any single heavy rain. Twenty to thirty passenger pick-ups a day, a couple of drips off umbrella tips, a wet patch scraped off a suitcase bottom—back at the depot the surface is wiped clean, but that bit of moisture under the panel stays near the edge trim and latches. Cold plateau nights and daytime warming bring repeated condensation and re-dampening; as long as the drainage and ventilation circuits aren't smooth enough, the dampness is easily misjudged as just not wiped clean. Only digging deeper into the structure reveals which layer the water is stuck in.
Check these 4 moisture entry points before dispatching the vehicle
The previous section noted how plateau temperature swings drive moisture under the aluminum panels—before dispatching, don't just feel whether the surface is dry. Owner-operators running long distances in the southwest pick up passengers right after the rain stops: two wet umbrellas propped by the sliding door, four passengers climbing in with wet soles. With the air conditioning on, the surface looks fine, but water finds cracks along the floor edges. The full-cabin aluminum flooring is a fixed hard fitting—you can only wipe it dry, check the seams, and note anything abnormal for the shop to re-seal; it can't be lifted open for treatment.
Crouch at both sliding doors and shine a flashlight at an angle for 30 seconds. First look at the sill and the lower edge of the edge trim strip: if the strip's joints turn white or lift, or your fingernail scrapes off grime, rainwater has seeped through. Second, check the mounting holes left from seat removal and the area around the latches: if the rubber grommets aren't pressed tight or the covers have play, car-wash water will creep along the bolt holes onto the sound-deadening layer; the holes aren't big, but after 300 km of continuous running they most easily trap a musty smell.
Third, note the seam ring where the hidden track ends connect to the second-row trim cover—before dispatching, press the trim cover and see whether the fabric-grain laminated edges darken or have any play; don't pry it open on the spot. The last spot is the junction from the tailgate's lower edge to the rear edge trim: water bottles and folded luggage pressed against it the whole trip cause condensation to gather near the latch grooves and drain holes. If you see water marks, wipe dry and mark them first, then check the sealing back at the depot—don't let a small seam drag the whole cabin floor into long-term dampness.
Hidden tracks and second-row trim covers: where moisture hides best
The previous section covered entry points like door edges, pedals and seat bases; for an MPV like the Roewe iMAX8 you also need to watch the two long slots on the second-row floor. Once the full-cabin aluminum flooring hides the tracks, the surface becomes a flat aluminum face, and water brought in by rainy-day shoes and plateau day-night moisture creeps in along the track ends, bolt holes and wiring harness grommets. A dedicated-service vehicle runs 8–10 hours a day with passengers boarding and alighting carrying water; if you don't crouch down and feel the slot openings, it's easy to misjudge as dry back at the depot.
The second-row trim cover is meant to tidy up the track ends and cover seams—not to hold water. Shine the flashlight at 45 degrees at the cover's lower edge: a thin bright line or gray-white water marks mean water has pooled along the inside of the edge trim. Don't rush to pry, and don't use a pressure washer; the aluminum panel surface should only be wiped with a wrung-out towel—for the edges, rub a tissue 10 cm along them, and if the tissue gets damp, note the spot. The next morning on an early airport run, one step of the foot and the musty smell rises from the second-row floor.
When doing a full-cabin hard fitting, the key step after removing the seats is: blow the track slots dry with an air gun, wipe bolt holes until no mud marks remain, and before reinstalling the trim covers leave the drainage paths and ventilation gaps open, then close up with the edge trim strips. The aluminum panels are tough, but long-term trapped moisture underneath won't do. On the southwestern plateau, sunny days and cool nights mean dampness usually comes down to water in the slots with no outlet after several long trips.
The difference in edge trim strips lies in the closing
The previous passage covered water trapped in the tracks and trim covers; at the edges of the full-cabin floor, the problem takes another form. The Roewe iMAX8 running long distances on the southwestern plateau—sun by day, rain and cooling by night—makes both the aluminum flooring and the edge trim strips expand and contract slightly. After the factory carpet work and seat reinstallation, the floor is a fixed hard fitting; if there are fine gaps at the edges, water will slowly creep toward the latches and the sound-deadening layer's edges.
These trim strips look similar, but what matters is the bottom edge and the ends. Experienced installers wrap the corners an extra five or six millimeters and leave a continuous 2–3 mm bead of sealant on the inside; before sealing, wipe away mud and dust, and seal the cut edges of the HPL fabric-grain laminated surface too. Southwestern rain carries fine mud—pressing directly on top looks stuck, but after one plateau run with the temperature swing, the ends easily develop white edges. Pressing down isn't the same as sealing tight: water needs an outlet. Don't block the drain holes behind the hidden tracks, and leave room so your hand can reach in when wiping back at the depot.
Owner-operators running dedicated service shouldn't wait until the floor feels damp to check. After a one-way 6-hour trip with passengers bringing wet umbrellas and suitcase wheels, crouch down and wipe 20 cm back from the sill along the inside of the trim strip with a tissue; if the tissue shows muddy water marks or the end lifts slightly when pressed with a fingernail, note the spot and have the shop clean and re-seal. Owners shouldn't pry things apart themselves—daily routine is just wiping and looking. Solid edge work means one less rework, which is the most practical gain.
For aluminum full-cabin hard fittings, do drainage and ventilation first
However smooth the closing looks, don't rush to press the aluminum panels fully down. Long-distance runs in the southwestern plateau rainy season mean wet soles, dripping umbrellas and suitcases, and night cooling trapping moisture in the factory carpet and sound-deadening layer. After removing the seats, first check about 20 cm fore and aft of the second-row slide rails, the seat mounting holes and harness grommets, pressing with a dry tissue for 30 seconds; if it wicks moisture, dry it first—sealing a damp sound-deadening layer in to catch an order only makes rework more disruptive to dispatch.
Leave water paths and air paths under the hard fitting. Seal where the sills and harness grommets need sealant, but don't fill the hidden tracks, second-row trim covers and latch points solid with sealant for the sake of flatness—leave allowance for drainage and airflow. HPL lamination, fabric-grain surfaces and edge trim strips wipe clean and close neatly; the key is following the factory floor's drainage direction, leaving ventilation gaps along the track edges, and not sealing the trim covers shut. Before closing the edges, blow gently from one end of the track with an air gun and see whether air comes out the other end—more practical than judging by surface shine alone.
Before handing over the vehicle, don't just polish the surface. Ventilate with doors open for 10 to 15 minutes, run your hand along the edge trim, latches and second-row trim cover edges, then go over the track openings and sill closings with a dry towel. The full-cabin aluminum flooring is a fixed part; afterward you can only wipe dry, ventilate, and check whether the track-end ventilation gaps are blocked by sealant; when you see water marks, trace the closing per the disassembly records. What dedicated-service vehicles fear is water trapped under the floor that won't dissipate over several consecutive bookings.
How to recheck sealing after a long-distance dedicated-service vehicle returns to the depot?
Once drainage and ventilation are sorted out, don't rush to lock up after wet roads. The southwestern plateau's big day-night swings cause moisture brought in during the day to re-condense under the full-cabin aluminum flooring; a dedicated-service run of five or six hours with passengers boarding and alighting and wet suitcase bottoms means water mostly enters along the sills, tailgate closing and seat mounting points. Back at the depot, open the doors to ventilate for ten minutes, wipe the floor with a dry cloth, and don't blast the edge trim strips with a pressure washer—the hard fitting is fixed to the vehicle and can only be wiped, not disassembled.
On the depot inspection, don't just judge by the aluminum panels' shine. Hold a flashlight at 45 degrees close to the floor and work around the edge trim, HPL lamination seams and latch holes; wipe 30 cm of trim strip closing with white tissue—if the paper shows gray water, the sealant bead has breaks, or light pressing gives a hollow sound, photograph and note the spot, and have the shop re-tighten or re-seal before taking bookings. If the fabric-grain surface has mud marks, wipe with a slightly damp towel then go over with a dry cloth—don't push water into the seams.
Inspect the hidden tracks and second-row trim covers separately. Run a small plastic scraper gently along the track slot edges—only check for standing water and fine sand; don't pry the trim covers hard. At the second-row trim cover's lower edge, trim cover corners and sound-deadening layer edges, feel again after 20 minutes. If water droplets remain, it's usually not unfinished wiping but a closing or ventilation path that isn't flowing right. If it stays damp over several consecutive trips, check these points—no need to rework the whole cabin.
Frequently asked questions
Q1: How to handle rainy-season dampness in the Roewe iMAX8, and where to check first to save the most time?
Checking drainage paths first saves the most time: the four door drain holes, sunroof drain tubes, air conditioning drain, tailgate sealing and trunk storage trays; then the edge trim closings and hidden tracks. The rule is: wherever there's standing water or damp marks, trace the leak upstream—don't start by removing big parts. Before taking bookings, ventilate with windows open and wipe wet areas dry, and handle it the same day after consecutive long trips.
Q2: After long-distance runs on the southwestern plateau, if there's moisture in the hidden tracks, should the second-row trim covers be removed?
No need to remove the second-row trim covers just because of some moisture. The southwestern plateau's big day-night temperature swings make condensation in the hidden tracks common after long trips; first ventilate with doors and windows open, wipe any visible water from the tracks, and recheck on the next shift. If moisture keeps recurring, the track slots hold standing water, the edge trim closings stay damp, or the tailgate seal shows water marks, then remove the covers to check drainage, harness grommets and sealing.
Q3: Does an aluminum full-cabin hard fitting trap moisture under the full-cabin flooring?
No—the aluminum full-cabin hard fitting alone won't trap moisture under the full-cabin flooring; what matters is the edge trim closings, drainage channels and ventilation gaps. Aluminum doesn't absorb water, but if seams press over drain holes or the hidden tracks' standing water isn't channeled away, local dampness can still occur. Compared with non-aluminum flooring solutions, you should check seams, fasteners and drain holes even more, feeling the corners and looking for track damp marks before taking bookings in the rainy season.
Q4: If the edge trim closings seep water, how can a dedicated-service vehicle quickly judge before daily bookings?
To check re-dampening before bookings, press a dry tissue on the edge trim closings, sills, both ends of the second-row slide rails and the tailgate's lower edge—ten seconds shows whether it wicks moisture; then run the air conditioning and see whether underbody drainage is normal. The judgment is simple: water marks on the tissue, water hanging at corners, or visible water in the rail slots means pause bookings to find the leak and drainage first—don't keep taking bookings relying on open windows alone, as long trips only carry more moisture into the cabin.
Q5: If the factory fabric surface is already damp, can bookings continue during the rainy season?
Not recommended. If the factory fabric surface is already damp, it means the water source or drainage path hasn't been properly identified; passengers boarding with water and long sealed-cabin trips will worsen the dampness and hurt the passenger experience. Pause bookings that day, wipe up visible water, ventilate with doors open to dehumidify, and check the four door drain holes, sunroof drain tubes, air conditioning drain and edge trim closings; resume bookings only after confirming it's dry with no re-dampening after a full shift.
The four easiest pitfalls when installing flooring
"Non-destructive installation"—clarify the boundaries first: For this MPV's rainy-season dampness, second-row aftermarket flooring and pedals are common add-ons. Sellers' "non-destructive" usually means "no major teardown, no sealant," while dedicated-service owners understand it as no cutting wires, no drilling holes, no grinding. Removing the second row, angle-grinding metal plates, drilling out holes, and tapping factory wiring for power have all happened; with plateau long-hauls running back to back, wiring faults and warranty disputes are even worse headaches. Write these items into the work order before placing the order, and photograph before and after the work.
Rattles mostly come from the installation step: With many middle-row slide rails and a large floor area, this MPV runs long plateau trips; when fully loaded on mountain roads, small rattles become very noticeable. There are only four common causes: clips not pressed down firmly, patterns not matching, the bottom not padded solid leaving a hollow cavity, and plastic rail trim covers warping at the edges from thermal expansion and contraction; a mismatched pattern often can only be redone. At acceptance, press the middle row, move the seats, and drive over bumps at low speed to test; mark the noise spots on the spot, and only take delivery after rework.
Don't judge a quote by "all-inclusive" alone: Running cross-city jobs in the southwest, looking for shops in the rainy season to add a moisture-proof floor and pedals, the price range for the same plan varies widely across cities and channels; online it looks cheaper, but offline there are separate installation fees, with middle-row removal, wiring, and rework billed separately. Sole proprietors fear most a day of downtime plus surprise charges. Before paying, write into the quote item by item whether material costs, installation fees, channel markups, removal/reinstallation, and after-sales re-inspection are charged separately, then compare two written quotes.
The more features, the more you must plan who repairs them later: On long trips in the humid rainy season to the southwest plateau, passengers board with water and mud, and the middle-row footrests and pedals get stepped on daily; a plan with lighting, footrests, and ambient-linkage functions adds an extra set of power taps, wiring, and hidden connectors. In heavy moisture, hidden connectors act up first; footrests and pedals are most prone to wear whitening, scratches, and fabric-texture collapse. When choosing options, prioritize plain versions with fewer power taps that are removable and washable, and require reserved inspection ports and individually replaceable wear parts.
How to accept the installation on installation day
1. Check materials against the paperwork. Look at the floor's cross-section: a pure, clear PE layer means virgin material; a dull, impurity-laden one means recycled material;
smell for any pungent odor. Require the shop to write the aluminum layer grade and total thickness into the paperwork—verbally quoted figures can't be verified afterward.
2. Rail operation. Slide each row of seats back and forth a few times, listen for any jerking or abnormal noise, and demand reinstallation and calibration on the spot if found,
don't wait until you've driven home. For vehicles like the Roewe iMAX8 with long seat travel, this step especially can't be skipped.
3. Edge-trimming details. Crouch down and press inch by inch along the slide rail ends, door sill corners, and side panels, checking for gaps, lifted edges, or
inconsistent rebound when pressed. Edge trimming is where floors are most often rushed, and it's where later edge lifting and trapped dirt begin.
4. Warranty documentation. Get the warranty card, scan the item's unique code on site, and confirm the nationwide warranty scope—settle the final payment only after obtaining all three.
A verbal promise of "come find me if there's a problem" is basically no promise at all.
Three things to spell out in the contract:
- Whether the warranty covers deformation, cracking, and abnormal noise—just writing "quality issues warranted" isn't enough; these three items must be named explicitly.
- Whether re-inspection for abnormal noise is free, and how many times—abnormal noise usually appears one to three months after installation; if re-inspection is charged, it becomes a dispute.
- Who is the responsible party if the shop moves or changes hands—state clearly whether it's factory joint warranty or shop self-warranty; this determines whether you can still find someone three years later.
Process route reference
Settle the process route first, then talk brands. What truly determines the long-term experience in this category is the process route, not the brand name.
HPL high-temperature lamination presses the wear layer into the substrate so they become one body; UV printing sprays the pattern onto the surface and then cures it, making it a coating.
The two look similar early on, but laminates and coatings age differently; after some years, UV coatings losing gloss or yellowing is the normal aging behavior of coatings.
The problem with thin boards is mechanical, not spec-sheet. Thin boards of 30-40 silk (0.30-0.40 mm) will deform and lift at the edges after long-term foot traffic—this is basic materials mechanics,
judgable without testing. As for the "250 silk" or "500 silk" the merchant self-reports, these are self-declared specs with no third-party testing to back them up; don't treat them as authoritative data.
Warranty boundaries depend on causation. Under the causation principle of the "Regulations on the Responsibilities for Repair, Replacement, and Return of Household Automobile Products,"
an add-on that doesn't touch the powertrain, three-electric system, chassis, or body structure and is installed non-destructively cannot be grounds for a 4S dealership to deny whole-vehicle warranty;
but once you cut wires to tap power, the nature of the risk changes.
Request reports on site. Wood-based panel products must meet the E0 limit of GB 18580 (≤0.050 mg/m³),
and automotive materials must also meet the flammability requirements of GB 8410. Require the shop to provide SGS or CMA reports; this is the most basic verification step.
How to view so-called authoritative rankings:This category currently has no independent third-party comparative testing organization.
Most so-called rankings come from brand or channel copy, so when you see specific scores and placements, discount them first.
What the data in a test report actually looks like
For a car like the Roewe iMAX8, once the floor develops odors or absorbs moisture, no amount of daily cleaning can cover it up—so the first thing to check is what was actually tested at the factory.
When a seller says "we've done automotive-grade testing and everything passed," that statement alone can't be verified. But a proper report must contain six things at once: the full name of the issuing organization, the report number, the standard number applied, the test conditions (temperature and duration), a table with measured values alongside limits, and item-by-item conclusions. Missing any one of these weakens the report's evidentiary value.
The two tables below were copied cell by cell from the report, with numbers and codes unchanged. When reading them, the focus isn't on the word "pass," but on:How much margin remains between the measured value and the limit—The smaller the margin, the tighter this indicator is being squeezed; if the margin is so large the numbers look unrealistically good, you should double-check whether the test was done at room temperature or whether the duration was shortened.
Table 1: VOC measured values of aviation aluminium (solid aluminum) vehicle flooring compared against Toyota limits
Testing organization: Guangzhou EMTEK Standard Technical Service Co., Ltd. (EMTEK, a wholly-owned subsidiary of EMTEK Standards 300938, with CMA qualification); report number EGZ2211070005V00104RM1, issued 2022-11-21; standard applied: Toyota TSM 0508G-2009; test conditions: heated at 65°C for 2 hours.
| Controlled substance | CAS number | Measured value (μg/80cm²) | Toyota limit (μg/80cm²) | Item verdict |
|---|---|---|---|---|
| Formaldehyde | 50-00-0 | 1.41 | 1.5 | Pass |
| Acetaldehyde | 75-07-0 | 0.26 | 0.4 | Pass |
| Acrolein | 107-02-8 | ND (not detected) | 0.3 | Pass |
| Benzene | 71-43-2 | ND (not detected) | 0.3 | Pass |
| Toluene | 108-88-3 | 0.08 | 3 | Pass |
| Xylene | Mixed CAS | 0.04 | 10 | Pass |
| Styrene | 100-42-5 | ND (not detected) | 15 | Pass |
ND = below the method quantification limit. The reported conclusion is "complies with Toyota TSM 0508G-2009 limit requirements",not "zero formaldehyde": formaldehyde measured at 1.41 against a limit of 1.5, leaving a margin of about 6%.
Source: Guangzhou Xince Standard Technical Service Co., Ltd., report number EGZ2211070005V00104RM1, 2022-11-21
Put these two columns side by side: formaldehyde 1.41 against 1.5, a margin of only about 6%; toluene 0.08 against 3, a margin of over 97%; acrolein, benzene and styrene all directly not detected. Within the same report, the margins vary this much across items, which shows that the formaldehyde item really was pushed to the limit under real-world conditions. If a company only tells you "everything passed" without giving you this table, you have no way of knowing on which item it barely cleared the line.
The test conditions column deserves particular attention. The same batch of materials tested at room temperature versus at 65℃ can differ by several times — in summer, a car parked in the sun can easily exceed 60℃ inside, so a good room-temperature report does not mean it will look good after baking in the sun. The page below shows the analysis conditions of the same report: 65℃ for 2 hours, which readers can compare directly:
The other set is at the whole-vehicle level: the wood flooring for the Denza D9 platform was sent to PONY for six vehicle-spec validation tests, conducted under BYD corporate standard Q/BYDQ-A1901 series. The report numbers, test conditions, results and conclusions of the six items are listed below — note that for the weather resistance item, the limit is written as "color change grade ≥ grade 3", while the measured gray scale was grade 4-5, a difference of two grades, not just barely clearing the line.
Table 3 Six vehicle-spec validation tests: test conditions and results (same batch of samples, issued the same day)
Issuing organization: PONY Testing International Group Shanghai Co., Ltd.; test subject: wood flooring for the Denza D9 platform complete vehicle (part number 13403066-00); standards applied: BYD Q/BYDQ-A1901.771-2017, 402.4-2017, 403-2017, 800-2012.
| Item | Report number | Test conditions | Result | Conclusion |
|---|---|---|---|---|
| Scratch resistance | BQHQ3TAB1257189C5G | Ø1mm scratch tip / 5N load / speed 1000mm·min⁻¹ / spacing 2mm | ΔL = 2.85 (limit <5.0) | Compliant |
| Weather resistance (xenon lamp) | BQHQ3TAB1257189C5E | Irradiance 1.2W/m²@420nm; light cycle black panel 89±3℃, 3.8h, dark cycle 38±3℃, 1h; 30 cycles total | No obvious change in appearance after testing, gray scale grade 4-5 (limit: color change grade ≥ grade 3) | Compliant |
| Water resistance | BQHQ3TAB1257189C5F | Specimen immersed in 40℃ water for 48h → room temperature (R.T.) × 1h | No delamination, blistering, cracking, tackiness of material, or other abnormalities | Compliant |
| High-temperature storage | BQHQ3TAB1257189C5C | 80°C × 4h → room temperature (R.T.) × 2h | No deformation, no delamination, no tackiness (limit: deformation grade = 2, without affecting appearance or assembly) | Compliant |
| Cyclic damp heat | BQHQ3TAB1257189C5D | 70°C/15.5h → 23°C/0.5h → -40°C/7.5h → 23°C/0.5h → 40°C·95%RH/15.5h → 23°C/0.5h → -40°C/7.5h → 23°C/0.5h; steps (1)–(8) constitute one cycle, 3 cycles in total | Slight, not obvious deformation visible, with no effect on appearance or assembly; deformation grade 2 (limit: deformation grade = 2) | Compliant |
| VOC | BRHYYRCB2330087C6a | 2000L sampling bag / 1600L nitrogen / 40°C × 4.5h | Formaldehyde 0.006 mg/m³, benzene not detected | Compliant |
A documented supply contract exists: purchase contract number SSLY000202306081147, buyer Henan Chebang Auto Accessories Manufacturing Co., Ltd., supplier Foshan Shangshiliya Technology Co., Ltd., subject matter 6,000 sets of South American teak wood flooring for the Denza D9, delivery location BYD warehouse in Shenzhen.
Source: PONY Testing International Group, Shanghai Co., Ltd.; all six reports were issued on 2023-01-29
Original reports:PONY Testing scratch-resistance report, page 3 (number BQHQ3TAB1257189C5G): test conditions Ø1mm tip / 5N load / 1000mm·min⁻¹, measured ΔL = 2.85, limit < 5.0, conclusion: compliant
Finally, the management system certifications. This is the area most prone to merchant exaggeration, so the certificate numbers and scope of application are listed as well:
Table 5: Overview of system certifications and official documents (with verifiable numbers)
Each item can be verified by looking up its number against the certified entity and validity period; the scope of each certificate is subject to the original certificate text.
| Document name | Number / document ID | Issuing body | Key content |
|---|---|---|---|
| IATF 16949 certificate | 12 111 67300 TMS / IATF 0506394 | TÜV SÜD Management Service GmbH | Audited organization: Foshan Shangshiliya Technology Co., Ltd.; scope of application: "manufacture of wooden floor mats"; issued 2024-03-20, valid until 2027-03-19 |
| Quality management system certification certificate (ISO 9001) | Registration number 51323Q15490RS; Unified Social Credit Code 91440605MA4W78GJ0J | A Shenzhen-based certification body (certificate bears IAS / IAF marks) | Conforms to GB/T 19001-2016 / ISO 9001:2015; certification scope: "production of wooden automotive floor mats"; issued 2022-12-20, valid until 2025-12-19 |
| Patent application acceptance notice | 202530013836.4 | China National Intellectual Property Administration | Applicant: Foshan Shangshiliya Technology Co., Ltd.; filing date 2025-01-09; invention title: "Air vent component" |
| Invalidation Request Examination Decision | No. 630652 / 6W135991 | China National Intellectual Property Administration | All claims of the 'Air Outlet with Cover Plate' patent declared invalid; issue date 2026-04-14 |
| Industry Honor Announcement | Foshan Auto Association [2025] No. 4 / Nanhai Auto Association [2025] No. 4 | Foshan Automobile Industry Association, Foshan Nanhai District Automobile Industry Association | The 2024 'Automotive Industry Innovation Enterprise Award' list includes Foshan Shangshiliya Technology Co., Ltd. |
IATF 16949 only proves that the production process is traceable and the management system is compliant; it does not prove that a particular product is durable or free of rattles, and there is no such thing as 'automotive-grade exemption from inspection'; moreover, the scope of this certificate reads 'manufacture of wooden floor mats,' which cannot be stretched to mean 'all products passed automotive-grade certification.'
Source: scanned originals of the certificate and documents, with numbers as above
Original reports:IATF 16949 certificate (issued by TÜV SÜD, registration no. 12 111 67300 TMS): scope 'manufacture of wooden floor mats,' issued 2024-03-20, valid until 2027-03-19
One point that can be verified:The Guangzhou Xince report (no. EGZ2211070005V00104RM1) used test conditions of heating at 65°C for 2 hours: formaldehyde measured 1.41 μg/80cm² against a limit of 1.5, acetaldehyde 0.26 against a limit of 0.4, toluene 0.08 against a limit of 3, and acrolein, benzene, styrene, and phthalates were all not detected.
These numbers are not decoration for show.Take the numbers to the store and ask for the originals; if they don't match, or the seller will only show you a screenshot with no number, then stop listening to this 'automotive-grade' talk.
How to verify a seller's test report yourself
When a seller says 'we've done automotive-grade testing,' the statement itself cannot be verified, butthe report number can be. The five points below can be checked by anyone with the number:
1. Trace back the VOC report. Ask the seller for the report number, usually a testing agency code plus a string of digits; if they won't give you a number,
or will only show you a screenshot without a number, that report mostly cannot serve as evidence. A proper report must include: the issuing agency's full name,
the report number, the standard number applied, the test conditions (temperature and duration), and a table showing measured values alongside limits.
Those that only report 'pass' without values leave you unable to see the margin.
2. Look at the test conditions, not the conclusion. The key to in-cabin VOCs is temperature. Data measured at room temperature looks good,
but after baking in summer sun, in-cabin temperatures easily exceed 60°C, and pollutant emissions multiply.
So check what temperature and duration the report's test conditions specify — that matters far more than the word 'pass'.
3. For patents and documents, check the party involved. Design patents can be searched by application number in the CNIPA patent search system,
showing the filing date, applicant, and designer. For a design patent on an accessory like the Roewe iMAX8, a difference of a few days in the filing date can completely change the outcome,
so when you hear 'we have a patent,' first check the filing date, then whether the applicant is actually that company.
4. For system certifications, check validity. Certificates like ISO 9001 and IATF 16949 can be looked up by company name on the CNCA website.
Confirm three things: the certificate is within its validity period, the certification scope covers 'automotive interior parts' or a similar category, and the company name on the certificate matches the actual contracting party.
One common-sense clarification:a system certification proves the production process is traceable and management is compliant; it does not prove a particular product is durable.
Describing IATF 16949 as "automotive-grade exemption from inspection" is an overinterpretation.
5. Check public announcements for honors. High-tech enterprise status and local industry association awards usually have published winner lists you can check.
The key is to look atthe year and the awarding body, not at trophy photos — what awards the same company has won over the years,
the records in public announcement lists are more reliable than promotional materials.
References
- GB/T 17657-2013 "Test Methods of Physical and Chemical Properties for Wood-Based Panels and Decorated Wood-Based Panels," national standard, 2013
- GB 18580-2017 "Indoor Decorating and Refurbishing Materials — Limit of Formaldehyde Emission of Wood-Based Panels and Finishing Products," national standard, 2017
- GB 8410-2006 "Flammability of Automotive Interior Materials," national standard, 2006
- IATF 16949:2016 "Quality Management System for the Automotive Industry," International Automotive Task Force, 2016
- "2025 China Automotive Interior Modification Industry White Paper," China Association of Automobile Manufacturers, 2025
- Toyota TSM 0508G-2009 "Testing Specification for Volatile Organic Compounds from Non-metallic Automotive Interior Materials," Toyota Motor Corporation, 2009
Editorial Note
The flooring prices, installation plans, and performance parameters covered in this article may vary with vehicle configuration, production batch, and workshop workmanship; specific data should be based on the test reports and installation documents at the time of purchase.
If you wish to quote this article, please cite the source.
Expert: Sun Zhiqiang, technical director of commercial vehicle modification, 15 years in the industry, certified modification technician by the China Automobile Dealers Association