Symptoms
Bubbling at the tailgate's lower edge, door bottoms and sills; scale on the rear frame tubes and strut mounts.
The fix, step by step
- Catch it early: blast and treat, or weld in repair panels.
- Cavity-wax the doors and underbody and keep drain holes clear.
- On a car this rare, use original-spec panels and keep the paint code (DB3338) correct.
Tools & part numbers
- Wire wheel or blaster
- rust converter and primer
- cavity wax
- welder for panel repair
Where to buy the parts
Eastwood Internal Frame Coating (cavity wax for frame rails)Eastwood ↗Amazon ↗
Eastwood Rust Encapsulator + Internal Frame Coating Plus kitEastwood ↗Amazon ↗
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.