I read online that the early W124 4MATIC transfer cases can have problems but I can't find anything specific on what goes wrong with them.


Can anyone shed some light on what model years/build dates to avoid on W124 4matics and aside from seals going bad is there anything else to look out for as far as the transfer case is concerned?


Thanks

Biggest problem was hydraulic fluid leaking into the transfer case and mixing with transmission fluid. Most leaked enough that it caused problems. I bought a 91 sedan with 60,000 miles on it. With some effort on my part (mainly draining excess fluid from transfer case every 5,000 mile oil change) I drove it until I sold it with over 240,000 miles. Others weren’t as fortunate and had to work on the transfer case seals much earlier. Awesome car in the snow.

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07 E350 4Matic wagon, 06 S430 4Matic, 99 SLK 230
retired W210 (x3), W124, W126