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RH Upper Mirror Glass Heated: 2026 Sprinter, Crafter & Dodge 2500/3500 Technical Guide | Koeep.com
RH Upper Heated Mirror Glass: Fitment, Specs and Diagnostics
The RH upper mirror glass in a Sprinter, Crafter or Dodge-badged van is a heated, bus-controlled wide-angle segment wired into the door control module. Crack it and you lose the wide-angle view; burn out the heater and the fault codes follow.
This guide covers the RH Upper Mirror Glass Heated for Dodge Mercedes Sprinter 2500/3500 and VW Crafter: platform fitment, electrical data, DTC mapping and the post-install steps that keep the warning light off.
Platforms and 2026 Compliance
Platforms in scope: Mercedes-Benz Sprinter W907/W910 (2019–2026), Dodge Ram Sprinter 2500/3500 (2003–2009 legacy fleet), Freightliner Sprinter (all NCV3 and VS30 variants) and VW Crafter SY/SZ (2017–2026), which shares the modular MQB-based commercial platform.
The glass meets 2026 SAE J2848 replacement-part conformity standards, supports LIN-bus 2.2 mirror-control modules and stays backward-compatible with CAN-bus 2.0B fleets running extended service lifecycles through 2030. The 2026 update adds ISO 16505 alignment for hybrid CMS plus conventional mirror layouts.
One glass, several OEM numbers. This single SKU replaces MB A9068100221 and A9108101600 plus VW 2E0857522C — a supply-chain advantage as OEMs tighten proprietary part numbering under the 2026 UNECE R46 Revision 5 indirect-vision mandates.
2026 Material and Protocol Updates
ITO thin-film instead of wire grids
The 2026 production cycle introduces a borosilicate-glass substrate with ITO (Indium Tin Oxide) thin-film heating elements, replacing legacy resistive wire grids on select OEM SKUs. The sputter-deposited conductive oxide layer holds ±2°C variance across the surface, killing the cold spots typical of wire-grid designs on the upper wide-angle segment.
Bus addressing and current draw
The heater talks to the door control module (DCM) via LIN node 0x2B on Sprinter VS30 and 0x1F on Crafter SY/SZ, drawing a nominal 12V / 4.2A in active defrost. Thermal endurance is 15,000+ cycles per ISO 16750-4, above the 10,000-cycle fleet-duty minimum.
Cross-Platform Specification Matrix
Match your platform against the columns below.
| Specification | Sprinter VS30 (2019–2026) | Dodge Sprinter 2500/3500 (2003–2009) | VW Crafter SY/SZ (2017–2026) |
|---|---|---|---|
| OEM part cross-ref | A9108101600 / A9068100221 | 68002242AA / 5103761AA | 2E0857522C / 2E0857522D |
| Heater element type | ITO thin-film (2024+) / resistive grid (legacy) | Resistive wire grid, 9.2 Ω nominal | ITO thin-film / resistive grid (platform-dependent) |
| Mirror bus protocol | LIN 2.2 (Node 0x2B), CAN-FD 3.0 | Direct 12V switched via door module relay | LIN 2.1/2.2 (Node 0x1F) |
| Current draw (defrost) | 4.2A @ 12V (50.4W) | 3.8A @ 12V (45.6W) | 4.0A @ 12V (48W) |
| Defrost threshold (2026) | ≤90 sec, −20°C → +5°C | ≤120 sec (fleet-retrofit benchmark) | ≤90 sec, −20°C → +5°C |
| Thermal cycling endurance | 15,000+ cycles (ISO 16750-4) | 10,000+ cycles | 15,000+ cycles (ISO 16750-4) |
| Glass substrate | Borosilicate, 2.8mm, convex upper | Soda-lime tempered, 3.0mm, convex | Borosilicate, 2.8mm, convex upper |
Check current pricing and stock on the Koeep product page before you order.
DTC Mapping and Service-Life Data
These codes map to the RH upper heater circuit:
- B1C64-13 — open circuit, all platforms
- B1C64-11 — short to ground, Sprinter VS30 / Crafter SY
- B1C65-12 — short to battery, Dodge NCV3
- B1C66-54 — calibration missing; sets on 2024+ VS30 when resistance drift exceeds 15%
- U0155-00 — lost communication with DCM; resolves indirectly when connector corrosion propagates to the LIN node
Reflectance and curvature data
The chromium first-surface coating delivers ≥95% reflectance across the 400–700nm visible spectrum per SAE J964. Convex curvature (R1400 ±50mm) matches the OEM radius for UNECE R46 Rev.5 Class IV compliance on N2 vehicles like the Sprinter 3500 and Crafter 35/50.
Lifecycle and stocking
Projected service life is 6–8 years or 200,000 km in normal commercial duty. The SKU is forward-compatible with the 2027 Sprinter refresh (VS30.2), which keeps the same mirror housing geometry and LIN architecture — stock it through the 2030 replacement cycle.
Installation Notes for 2024–2026 Vans
On 2024–2026 Sprinter VS30 and Crafter SY/SZ with LIN-bus mirror modules, the DCM may need a LIN node re-initialization after glass replacement. Run the Initialize Mirror Heater routine — Xentry path: Control Units → Door Module → Adaptations → Mirror Heater Calibration. Skipping it can leave a persistent B1C66-54 even with a fully functional heater.
Older Dodge NCV3 vans and early Crafters (pre-2017) do not need this step. Before the glass goes in, measure resistance across the heater terminals: 8.5–11.5 Ω at 25°C is the pass window, while anything above 100 Ω reads as an open circuit to the DCM.
After the swap: clear adaptations and reset the DCM — Xentry for Sprinter, ODIS for Crafter, wiTECH 2.0 for Dodge.
Related Parts for Fleet Garages
Running Ram pickups next to your Sprinters? The Right Side Door Mirror Glass Power Heated for 2005–2009 Dodge Ram 1500/2500/3500 covers the full-size trucks with power-heated mirrors.
- Towing setups: the Right Towing Mirror Glass Heated for Dodge Ram Truck 1500/2500/3500 (5161010AA) adds the wider towing-mirror optic for heavy loads.
- Full catalog: browse Body Parts at Koeep for the complete auto and motorcycle body components range.
- Cooling side: the Aluminum Radiator CU13200 guide covers 2011–2014 Dodge Durango and Jeep Cherokee cooling upgrades.
Ordering and Fleet Support
One unit or a fleet batch — send quantities and your platform mix (VS30, NCV3 or Crafter SY/SZ) through the request-for-quote page. Quick fitment or DTC questions go to support@koeep.com, or message the team on WhatsApp.
Restore the wide-angle view and the defrost in one swap.
Covers Sprinter 2500/3500, Dodge Sprinter and Crafter SY/SZ with a ≤90-second defrost at −20°C.
View Full Specs & Order — Koeep.comDiagnostic FAQ: Heated Mirror Troubleshooting
Why is my Sprinter 3500 throwing DTC B1C64-13 (Mirror Heater Circuit Open)?
B1C64-13 means an open circuit in the RH mirror heater element. On 2024–2026 VS30 vans the DCM watches heater resistance over the LIN node; above 100 Ω it sets the fault. Usual causes: impact-fractured ITO film, corroded connector terminals, or pin fitment at DCM X35/2. Clear the code with Xentry/DAS or a J2534 tool, then re-initialize the LIN node.
Does the glass work with Crafter auto-dimming and blind-spot assist?
Yes. Dimming lives in the lower primary flat glass — the upper wide-angle segment is not the electrochromic element. It works with Blind Spot Assist (BSA) and Sideguard Assist, since the warning LED sits in the housing, not the glass. On 2026 CMS hybrid layouts (ISO 16505:2025) it acts as the regulatory fallback device, with no LIN conflicts against BSA or CMS modules.
My Dodge Sprinter heater stays on constantly — what do I scan?
On 2003–2009 Dodge Sprinter 2500/3500 the heater is a timed relay circuit with a 10–15 minute auto-off via the door module. If it never shuts off, scan B1C65-11 (short to ground) or B1C66-12 (short to battery). Usual failure: a fused relay contact in the door module — an element drawing over 6A can weld it. Fit the new glass to restore the 3.8A draw and check fuse F34 (15A) in the under-dash PDC.
What 2026 regulatory changes affect mirror glass replacement?
UNECE R46 Revision 5, effective January 2026 for new type-approvals, tightens Class IV wide-angle field-of-view rules on N2/N3 commercial vehicles and demands ≥95% reflective surface integrity post-installation — the chromium first-surface coating meets it.
EU 2025/2040 (Right to Repair Extension) requires explicit OEM cross-referencing and equivalent thermal performance for glass sold in the EU/EEA. This part's compliance documentation covers both mandates.
What heater resistance should I measure before installing?
Check across the heater terminals at 25°C: the pass window is 8.5–11.5 Ω per SAE J2848, and the legacy Dodge wire grid reads 9.2 Ω nominal. Above 100 Ω the DCM sees an open circuit and flags B1C64-13; drift past 15% sets B1C66-54 on 2024+ VS30 vans.
Do 2024–2026 vans need re-initialization after the swap?
Yes, on 2024–2026 Sprinter VS30 and Crafter SY/SZ. Run the Initialize Mirror Heater routine — Xentry path: Control Units → Door Module → Adaptations → Mirror Heater Calibration. Skipping it can leave a persistent B1C66-54 even with a healthy element. Older Dodge NCV3 vans and pre-2017 Crafters need no re-init.
- RH Upper Mirror Glass Heated for Dodge Mercedes Sprinter 2500 3500 VW Crafter — Koeep.com
- Right Side Door Mirror Glass Power Heated for 2005–2009 Dodge Ram 1500 2500 3500 — Koeep.com
- Right Towing Mirror Glass Heated for Dodge Ram Truck 1500 2500 3500 (5161010AA) — Koeep.com
- Body Parts | Koeep Auto & Motorcycle Body Components
- Aluminum Radiator CU13200: Ultimate Cooling Solution for 2011–2014 Dodge Durango & Jeep Cherokee
- Request for Quote — Koeep.com
- Standards referenced in the source guide: SAE J2848, SAE J964, ISO 16750-4, ISO 16505:2025, UNECE R46 Revision 5, EU 2025/2040.