2019 G 550s with 75K-ish miles. What am I in for?
The plan would be to use this as my daily (commute 3x/week to the office) and general light duty "truck stuff" (hardware store, garden center, etc...). We have a Panamera wagon for road trips (which currently does the "truck stuff" just fine, lol).
Currently driving a 2019 W222 S63. Looking for something sorta rugged to switch up the vibe. I considered the Lexus GX550 and LX600, but the twin turbo V6 drama is giving me pause. Had a person in the know tell me to straight up pass on them for a couple of years until Toyota gets it sorted. New cars are being returned on flatbeds. Considered a Defender, but I've never owned a Land Rover product, so I'm simply not familiar with dealing with them or the local service teams. I haven't heard good things. The Ineos steering is a freaking joke. Not sure how that made it to production. I'm sure that it's great for proper off-roading, but 99.99% of them will do more Malling than Crawling.
Candid thoughts would be greatly appreciated.
The M176 in the 550 may not be as susceptible to OVS failure leading to RMS failure to the extent the M177 is but it is something to think about.
Is the RMS fix for the G-Class easier, same, or more difficult than with the sedans? Is it a drop the engine and trans and do it all on the ground 40 hours type of job?
OVS replacement depends on intercooler and radiator packaging.
C63 in particular has a tight arrangement in this area. E63 with M177 LS2 seems to have the most data points and reports on this site - long job.
You would be one of the highest authorities on W463 M176. There are not many reports or data points. A hopeful fact is that the G has the roomiest engine bay but you need to remove the engine cover and see how the intercoolers are packaged.
OVSs are directly attached to the engine in all cases.
Last edited by chassis; Apr 24, 2026 at 10:54 AM.
I called a reputable tech in my area and asked him his thoughts and he said that that truck is susceptible to have the RMS leak and if that truck developed it, it would be an engine and transmission out job taking about 2 weeks and costing about 30-40 hours of labor plus parts (and “while you are in there” work).
Last edited by CQHall; Apr 24, 2026 at 11:21 AM.
I called a reputable tech in my area and asked him his thoughts and he said that that truck is susceptible to have the RMS leak and if that truck developed it, it would be an engine and transmission out job taking about 2 weeks and costing about 30-40 hours of labor plus parts (and “while you are in there” work).
MB dealers get paid for engine-out. An indy isn't going to tell you anything different.
Time takes time. A weekend job.
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