Symptoms
Oil collecting at the top front of the engine in the V, running down the front of the block onto the belt, pulleys or harmonic balancer; a burning-oil smell once it reaches hot parts. Owners often get misdiagnosed first — on one M113 the first shop blamed the power steering pump.
The fix, step by step
- Confirm the source by degreasing the engine and checking again after a drive.
- Remove whatever sits over the housing (air intake ducting and covers), unbolt the housing, clean both mating faces completely and fit new seals.
- Use genuine Mercedes or Elring seals, torque to the factory figures, then degrease again so any remaining leak is easy to spot.
Tools & part numbers
- Metric sockets and Torx/E-Torx bits
- torque wrench
- gasket scraper (plastic) and brake cleaner
- new oil filter housing seals (genuine or Elring)
- fresh oil and filter while you’re in there
Where to buy the parts
Reinz oil cooler / filter-housing gasket, lower (112 184 03 61)FCP Euro ↗Amazon ↗
Elring oil cooler / filter-housing gasket (112 184 02 61)FCP Euro ↗Amazon ↗
Mann oil filter kit HU 718/5 x (000 180 26 09)FCP Euro ↗Amazon ↗
Hunting a used or discontinued part? Search eBay Motors for Mercedes-Benz G 500 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.