Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCEDES BENZ2006C350 4MATICREPAIR AND DIAGNOSISBODY & FRAMEWINDOWSDOORS & WINDOWS -- 203 CHASSISBASIC KNOWLEDGEDESYNCHRONIZATION OF POWER WINDOWS, FUNCTION - GF72.29-P-4002PP
2006 Mercedes Benz C350 4Matic
Desynchronization of power windows, function - GF72.29-P-4002PP
2006 Mercedes Benz C350 4MaticSECTION Desynchronization of power windows, function - GF72.29-P-4002PP
MODEL 203
Desynchronization
A desynchronization is performed if:
- Left front door control module (N69/1)
- Right front door control module (N69/2)
- Left rear door control module (N69/3) and/or
- Right rear door control module (N69/4)
- a power supply of UB <6.5V for t>30 s is connected to circuit 30
- The position counter for the window obtains a value greater than the maximum window travel during manual or automatic lowering
- the window reaches a position counter reading during manual or automatic closing which extends beyond the negative zero point tolerance or beyond the stored zero point
- 1 of 2 Hall sensor signals is faulty for 12 rotations of the armature
Automatic raising is no longer possible after desynchronization.
Model 203.7 has no rear door control modules or power window motors.
| Synchronization of power windows, function | GF72.29-P-4003PP |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.