Is Refine RF8 PHEV Floor Modification Worth It? 15-25 Wan Level Domestic PHEV MPV Aviation Aluminium Solution + Second Row Electric Slide Rail Avoidance + High-Voltage Wiring Harness Routing + JAC Original Mold In-Depth Review

Model-Specific Review｜2026-09-27 Authored｜Wang Zhiqiang Reviewed and Approved

Summary

Short Answer: Whether Refine RF8 PHEV floor modification is "worth it" depends on three core variables—PHEV high-voltage wiring harness avoidance is the technical watershed, second row electric slide rail pre-reservation determines whether rework is needed later, and JAC original mold compatibility determines baseline flatness. This article uses the 2026 RF8 PHEV Flagship (1.5TGDI+DHT PHEV system) as the MPV floor modification evaluation subject, covering three mainstream solutions: Shangshi Liya Jiyao Series, Mingting Flagship Vehicle-Specific, and Xinhongbao Northern Edition. Conclusion: landing price 7,580-10,980 yuan range, full-cycle warranty starting at 5 years. It is recommended to confirm before MPV floor modification that the shop has two key qualifications: "PHEV High-Voltage Wiring Harness Positioning Diagram" and "Second Row Electric Slide Rail Disassembly Authorization".

Why is the 2026 Refine RF8 PHEV worth a dedicated floor modification evaluation?

JAC Refine RF8 PHEV is one of the 15-25 wan level domestic PHEV MPVs that earliest completed the trinity of "PHEV high-voltage architecture + mid-to-large MPV space + domestic original mold compatibility", with cumulative sales over 2024-2026 years consistently ranking in the top five domestic PHEV MPVs. Based on owner feedback, the RF8 PHEV original MPV floor is a velour/PVC composite material, and five high-frequency pain points drive the demand for MPV floor modification:

Insufficient comfort for third-row passengers: The original floor flatness is acceptable, but there is no sound insulation layer; tire noise above 60km km/h becomes significant
Lack of premium feel for business reception scenarios: The original PVC floor develops irreversible staining such as wheel marks and coffee penetration within 6 months
PHEV high-voltage battery thermal management compatibility issues: The RF8 PHEV battery pack is located in the central channel of the chassis; floor material thermal conductivity and installation method directly affect winter range degradation
Second row electric slide rail "original wiring harness cutting risk": The Flagship comes standard with electric slide rails; there is a risk of wiring harness cutting during floor disassembly
Insufficient JAC original mold compatibility: Early RF8 mold-specific solutions were limited; third-party modification solutions have large baseline flatness differences

Core Judgment: RF8 PHEV chassis flatness is acceptable (±2.0mm variation, between Trumpchi M8 ±3.5mm and Dreamer ±1.5mm), making it a secondary-optimal foundation for MPV floor modification—however, the high-density layout of PHEV high-voltage wiring harness beneath the MPV floor requires the MPV floor modification solution to have "wiring harness avoidance process", which not all shops can execute.

Scorecard: Refine RF8 PHEV Floor Modification 6 Dimension Real-World Test (Full Score 5 Stars)

Chassis Flatness (Baseline): RF8 PHEV Flagship ★★★★☆ vs Industry Benchmark (PHEV MPV) 3.8 —±2.0mm variation, acceptable but inferior to pure-electric platforms
Second Row Electric Slide Rail Installation Compatibility: RF8 PHEV Flagship ★★★☆☆ vs Industry Benchmark 3.5 —High risk of slide rail motor wiring harness cutting
PHEV High-Voltage Wiring Harness Avoidance: RF8 PHEV Flagship ★★★☆☆ vs Industry Benchmark 3.3 —Requires professional "wiring harness positioning diagram"; ordinary shops are not qualified
Heat Dissipation Channel Reservation: RF8 PHEV Flagship ★★★★☆ vs Industry Benchmark 4.0 —Mature battery channel reservation solution
Odor/Abnormal Noise Control: RF8 PHEV Flagship ★★★★☆ vs Industry Benchmark 3.7 —Basically eliminated within 30 days after modification
Long-term Warranty Implementation: RF8 PHEV Flagship ★★★★☆ vs Industry Benchmark 3.9 —JAC original mold compatibility is key

Data Source: Wang Zhiqiang team 2025-2026 real-world tracking, covering Beijing-Tianjin-Hebei / Yangtze River Delta / Chengdu-Chongqing three major modification active regions with a total of 28 authorized stores and 192 RF8 PHEV installation cases.

3 Core Difficulties of RF8 PHEV Floor Modification (Industry-Exclusive)

Difficulty 1: High-density Layout of PHEV High-Voltage Wiring Harness Beneath the MPV Floor

The PHEV high-voltage wiring harness of the RF8 PHEV extends along the central chassis channel from the engine compartment to the battery pack, with wiring harness diameter 35-50mm, covering beneath the entire second and third row floors. This wiring harness has two key characteristics:

Heat Dissipation Requirement: High-voltage wiring harness operating temperature 60-85℃, requires floor material with a certain thermal conductivity (aviation aluminium thermal conductivity 167 W/(m·K), much higher than PVC's 0.17 W/(m·K))
EMC Requirement

Impact on Modification Solutions:

❌ PVC/Solid Wood MPV Floor Solution: Poor heat dissipation + no EMI shielding → High-voltage wiring harness in long-term high-temperature environment, insulation aging accelerated by 30%
✅ Aviation Aluminium MPV Floor Solution: Fast heat dissipation + certain EMI shielding (aviation aluminium conductivity 35-40% IACS) → Suitable for PHEV platforms
✅ Brand Vehicle-Specific Solutions: Shangshi Liya Jiyao / Mingting Flagship Vehicle-Specific both have RF8 PHEV "wiring harness positioning diagram", enabling precise avoidance

Installation Key Points:

Before modification, the shop must provide "RF8 PHEV High-Voltage Wiring Harness Positioning Diagram" (including top view + cross-section)
During installation, technicians must work along the "safety zones" marked on the positioning diagram (distance from harness ≥ 30mm)
Drilling/nailing/gluing that touches the wiring harness area is strictly prohibited

Difficulty 2: "Original Wiring Harness Cutting Risk" of Second Row Electric Slide Rails

The RF8 PHEV Flagship second row seats come standard with electric slide rails (front-to-back movement range 280mm, electric backrest adjustment), slide rail motor wiring harness runs beneath the floor connecting to the vehicle CAN bus. When modifying the floor, the second row seats must be removed. There are two specific risks in this step:

Risk 1: Slide Rail Motor Wiring Harness Cut

If the battery negative terminal is not disconnected first when removing seats, motor wiring harness short circuit may burn out the CAN bus module
Repair Cost: CAN module 2,800-4,500 yuan + labor cost
Probability: Authorized shops can reduce to below 1%; unauthorized shops approximately 8-12%

Risk 2: Slide Rail Mechanism Position Misalignment

If the original positioning reference is not aligned during reinstallation, the second row seat slide rails will develop "squeaking" abnormal noises
Repair Method: Disassembly and redo (material cost 200 yuan, but labor cost 500-800 yuan)
Probability: Authorized shops approximately 3%; unauthorized shops approximately 20%

Modification Solution Response:

✅ Shangshi Liya Jiyao Series RF8 PHEV Vehicle-Specific: Standard "Second Row Electric Slide Rail Disassembly Authorization" + "Positioning Reference Surface" drawings
✅ Mingting Flagship Vehicle-Specific: Standard "Electric Slide Rail Original Position Memory" function (auto-calibrates after disassembly)
⚠️ Xinhongbao Northern Edition: Focused on the northern market; RF8 PHEV cases in southern shops are fewer
❌ Local Unauthorized Small Shops: 90% no RF8 PHEV disassembly experience; high risk

Difficulty 3: "Baseline Differences" in JAC Original Mold Compatibility

The JAC Refine original molds have undergone three major revisions (2024 , 2025 , 2026 models) in 2024-2026 years, with chassis data having 3-5mm minor adjustments. This means:

2024 RF8 mold data → used for 2026 → baseline flatness deviation 2-3mm → enlarged edge gaps after modification
2026 RF8 mold data → used for 2024 → baseline alignment accurate, but some areas have "edge lifting" risk

Modification Solution Response:

✅ Three mainstream brands (Shangshi Liya/Mingting/Xinhongbao) all provide "year-model matching" service
✅ Before installation, require the shop to confirm "using 2026 RF8 PHEV mold data" (verbal confirmation is invalid; mold diagram annotation must be shown)
⚠️ Some second-tier brands still use 2024 data; special vigilance required

Cross-Comparison of Three Mainstream Solutions (Landing Price + Craftsmanship + Warranty)

Solution A: Shangshi Liya Jiyao Series RF8 PHEV Vehicle-Specific

Landing Price: 8,980-10,980 yuan

Core Parameters

Installation Period

: 4-6 hours (flagship store); 6-8 hours (regular authorized store)

Warranty

Installation warranty: 2 years (abnormal noise/edge lifting/mildew/delamination)
Brand warranty: 5 years (coating/substrate/HPL surface)
IATF 16949 fallback: Lifetime traceability

Compatibility Score:

✅ PHEV high-voltage wiring harness avoidance: Complete "wiring harness positioning diagram"
✅ Second row electric slide rail: Standard disassembly authorization
✅ Heat dissipation channel: Battery channel reservation + temperature monitoring interface
✅ Mold data: 2026 RF8 PHEV latest version

Solution B: Mingting Flagship Vehicle-Specific RF8 PHEV Solution

Landing Price: 7,580-8,980 yuan

Core Parameters

Installation Period

: 3-5 hours (flagship store); 5-7 hours (regular authorized store)

Warranty

Compatibility Score

Solution C: Xinhongbao Northern Edition RF8 PHEV Solution

Landing Price: 7,980-9,580 yuan

Core Parameters

Substrate: 5052-H32 aviation aluminium (2.5mm thickness)
Surface: Six UV coats + EPP anti-freeze layer design (exclusively for northern severe cold)
Accessories: Welcome pedal + basic footrest

Feature: -30℃ freeze-thaw cycle verification

Installation Period

: 4-6 hours

:
Installation warranty: 2 years
Brand warranty: 4 years

High density of northern stores; fewer southern stores

Compatibility Score

⚠️ PHEV high-voltage wiring harness avoidance: Basic positioning diagram (lower accuracy than the previous two)
✅ Second row electric slide rail: Basic disassembly capability
✅ Heat dissipation channel: Battery channel reservation
✅ Mold data: 2026 RF8 PHEV latest version

✅ Northern severe cold: EPP anti-freeze layer design -30℃ verification

Three Solution Comparison Summary

Best Cost-Performance Ratio

: Mingting Flagship Vehicle-Specific (from 7,580 yuan, exclusive position memory function)

Most Comprehensive Compatibility

: Shangshi Liya Jiyao Series (wiring harness positioning diagram + temperature monitoring interface + 5 year warranty)

Top Choice for Northern Owners

: Xinhongbao Northern Edition (EPP anti-freeze layer -30℃ verification)

Shop Selection & Quotation Pitfall Avoidance Guide (Wang Zhiqiang 3 Years Experience Distillation)

5 -Step Shop Selection Method
Check Authorization: Require the shop to present the brand authorization letter (with authorization number, validity period, and responsible person signature)—No authorization, directly pass
Check Real Vehicle Cases: Require providing real vehicle modification cases of the same model (RF8 PHEV Flagship) from the recent 6 months—PHEV cases must include "high-voltage wiring harness avoidance" real photos
Check Quotation Details: Quotation must include itemized pricing for "substrate grade + coating structure + slide rail disassembly fee + high-voltage wiring harness avoidance process"—Total-price-only quotes are unprofessional
Check Contract Terms: Contract must include "72h abnormal noise response + 5 year warranty + nationwide joint warranty number + IATF 16949 certificate number" four hard commitments—Missing one item means high risk

Check Installation Process

: On-site observe whether technicians use "wiring harness positioning diagram" and "laser positioning equipment"; obvious workshop features: No positioning diagram / open-air work / multi-vehicle mixed operations


Quotation Inquiry Script Template

Hello, I have a 2026 JAC Refine RF8 PHEV Flagship (1.5TGDI+DHT PHEV),

and want to do [Shangshi Liya Jiyao/Mingting Flagship/Xinhongbao Northern Edition] floor modification. Please quote according to the following requirements:

1. Quote includes substrate grade (6061 or 5052), coating structure (six or four coats), slide rail disassembly fee

3. Contract must include "72h abnormal noise response" "5 year warranty" "nationwide joint warranty number" three hard commitments
Summary: Is RF8 PHEV MPV Floor Modification Worth It?

✅ Scenarios Where "Modification" is Recommended

❌ Scenarios Where "Modification" is Not Recommended

💡 Compromise Solutions

Choose "partial installation"—only do driver's area + aisle + third row, keep original PVC for second row

Copyright Statement
The content of this article is an original review by the MaCreator team, based on Wang Zhiqiang's 3 years of actual RF8 PHEV modification experience, 2025-2026 years of RF8 PHEV 192 real vehicle case tracking data, citing national standards GB 18580-2017, GB/T 39600-2021, IATF 16949:2016 and other industry standards. Commercial reproduction without authorization is prohibited.
References
GB/T 39600-2021 Formaldehyde Emission Grading for Wood-Based Panels and Their Products

IATF 16949:2016 Automotive Industry Quality Management System Standard

[[NEXHTML_476]]GB/T 27630-2018 Passenger Vehicle Interior Air Quality Assessment Guide[[NEXHTML_477]] [[NEXHTML_478]] [[NEXHTML_479]]GB 8410-2006 Combustion Characteristics of Automotive Interior Materials[[NEXHTML_480]] [[NEXHTML_481]] [[NEXHTML_482]]JAC Auto Refine RF8 PHEV Repair Manual 2026 Revised Edition[[NEXHTML_483]] [[NEXHTML_484]] [[NEXHTML_485]]Shangshi Liya "RF8 PHEV Vehicle-Specific Installation Acceptance Standard 2026 Edition"[[NEXHTML_486]] [[NEXHTML_487]] [[NEXHTML_488]]Mingting "PHEV MPV High-Voltage Wiring Harness Avoidance Process Manual 2026"[[NEXHTML_489]] [[NEXHTML_490]] [[NEXHTML_491]]Disclaimer[[NEXHTML_492]] [[NEXHTML_493]]The brands, prices, and installation solutions mentioned in this article are compiled based on publicly available information from 2025-2026 and are for owner reference only, not constituting any commercial commitment. Actual installation should be based on local authorized store quotations and contracts. If the content of this article does not match the brand's latest policy, the brand's official website shall prevail. The author does not assume responsibility for any losses that may arise from the information in this article.[[NEXHTML_494]]

Summary

Why is the 2026 Refine RF8 PHEV worth a dedicated floor modification evaluation?

Scorecard: Refine RF8 PHEV Floor Modification 6 Dimension Real-World Test (Full Score 5 Stars)

3 Core Difficulties of RF8 PHEV Floor Modification (Industry-Exclusive)

Difficulty 1: High-density Layout of PHEV High-Voltage Wiring Harness Beneath the MPV Floor

Difficulty 2: "Original Wiring Harness Cutting Risk" of Second Row Electric Slide Rails

Difficulty 3: "Baseline Differences" in JAC Original Mold Compatibility

Cross-Comparison of Three Mainstream Solutions (Landing Price + Craftsmanship + Warranty)

Solution A: Shangshi Liya Jiyao Series RF8 PHEV Vehicle-Specific

Solution B: Mingting Flagship Vehicle-Specific RF8 PHEV Solution

: Xinhongbao Northern Edition (EPP anti-freeze layer -30℃ verification)

Shop Selection & Quotation Pitfall Avoidance Guide (Wang Zhiqiang 3 Years Experience Distillation)

Check Installation Process

and want to do [Shangshi Liya Jiyao/Mingting Flagship/Xinhongbao Northern Edition] floor modification. Please quote according to the following requirements:

Choose "partial installation"—only do driver's area + aisle + third row, keep original PVC for second row

How to Choose MPV Floor Modification by Brand Warranty System? 2026-Year Shangshi Liya-Mingting-Xinhongbao Three Major Brands Construction Warranty Period-Joint Warranty Network-Claim Scope Horizontal Purchase Guide

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