Symptoms
Oil seeping at the right rear of the cylinder head, visible from underneath; oil smell after a run.
The fix, step by step
- Replace the head gasket and resurface the head if needed, with new head bolts and seals.
- Owners report the leak doesn't return after a proper repair.
- The same PeachParts owner still recommended a G 500 for long-term ownership.
Tools & part numbers
- Head gasket set
- head bolts
- torque wrench and angle gauge
- access to a machine shop
Where to buy the parts
Elring M104 3.2 head gasket 104 016 28 20 (E320/S320 3.2 — confirm vs G 320 engine no.)FCP Euro ↗Amazon ↗
Elring M104 head gasket set 104 010 37 20 (confirm vs engine no.)FCP Euro ↗Amazon ↗
Elring M104 head bolt set 104 990 00 12FCP Euro ↗Amazon ↗
Hunting a used or discontinued part? Search eBay Motors for Mercedes-Benz Europa International Gs 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.