ML550 for 5K
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Joined: Aug 2025
Posts: 104
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From: Texas
2015 ML350, 2020 BMW X7, 2005 LS430
ML550 for 5K
Hi, I found a ML550 for sale, a 2014 for only 8K, and it runs and drives. It has the beautiful designo interior and is very highly optioned. The only thing that scares me is the fact that it has 180k miles. Do you think it's a good buy or to skip. I'm coming from a ML350 and it's much less complex compared to the ML550. Let me know your opinions. Also I don't know the service history of the car but the images make it seem like a cleanish car. Would 8K be too high? How about 6k?
Last edited by ARL_350; Oct 10, 2025 at 01:26 PM.
Out Of Control!!
Joined: Jun 2004
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Nothing is more expensive than a cheap Mercedes
saving $2000 off the asking price would make no difference at all if you end up having to put in $15,000 into this car over the next two years, what is your threshold for disruption of your quality of life and your monetary flow of cash towards this car and any ongoing maintenance or big repairs that may be incurred over the next two years? What are your thresholds?
saving $2000 off the asking price would make no difference at all if you end up having to put in $15,000 into this car over the next two years, what is your threshold for disruption of your quality of life and your monetary flow of cash towards this car and any ongoing maintenance or big repairs that may be incurred over the next two years? What are your thresholds?
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From: DFW
SL63
Nothing is more expensive than a cheap Mercedes
saving $2000 off the asking price would make no difference at all if you end up having to put in $15,000 into this car over the next two years, what is your threshold for disruption of your quality of life and your monetary flow of cash towards this car and any ongoing maintenance or big repairs that may be incurred over the next two years? What are your thresholds?
saving $2000 off the asking price would make no difference at all if you end up having to put in $15,000 into this car over the next two years, what is your threshold for disruption of your quality of life and your monetary flow of cash towards this car and any ongoing maintenance or big repairs that may be incurred over the next two years? What are your thresholds?
Out Of Control!!
Joined: Jun 2004
Posts: 13,799
Likes: 3,232
2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
https://mbworld.org/forums/sl-class-...uy-sl-amg.html
https://mbworld.org/forums/sl-class-...available.html
however likely the vast majority of expensive Mercedes are running fine
Last edited by PeterUbers; Oct 10, 2025 at 05:32 PM.
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From: In the Shadow of the Tetons
2013 ML350 Bluetec
A thorough pre purchase inspection would be money well spent. The reputation for scored cylinder walls is there and would be my first concern. State of the fluids (all of them) would be a close second. Rust? Where's the car from? Carfax? Scanned codes? Take it for a drive. Flog it like you stole it and listen closely to what the car is saying.
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Joined: May 2021
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From: US
2008 E350, 2012 ML350, 2014 E350, 2015 ML350
You need a good or excellent PPI, or you may end up with a paperweight.
ML550 maintenance, just because of the M278 (M157 sibling), ignoring the chance of a scored cylinder includes:
or their older video
ML550 maintenance, just because of the M278 (M157 sibling), ignoring the chance of a scored cylinder includes:
or their older video
Last edited by JCM_MB; Oct 11, 2025 at 12:57 AM.
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Out Of Control!!
Joined: Apr 2019
Posts: 12,172
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
EXPERT POINTS OUT
A professional MB EXPERT: Mike from M603-Autowerks shop summarizes the common issues on the M278. The top failures are related to extreme heat level + coolant pressure.
Could this be caused by accumulated pistons heat boiling coolant at engine stop ? What if heat could be normalized?
Could this be caused by accumulated pistons heat boiling coolant at engine stop ? What if heat could be normalized?
Last edited by CaliBenzDriver; Oct 14, 2025 at 08:27 PM.
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