Symptoms
Damp headliner, wet carpets, odd electrical faults. Every 500 GE had an electric sunroof as standard.
The fix, step by step
- Clear all the sunroof drains, then check the carpets, fuse box and climate components for water damage.
- Leaving it is what makes it expensive.
Tools & part numbers
- Trimmer line or drain wire
- low-pressure air
- towels
Where to buy the parts
Mercedes sunroof drain hoses & connectors (search; match W463 part by VIN)FCP Euro ↗
Hunting a used or discontinued part? Search eBay Motors for Mercedes-Benz 500 GE V8 parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.