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08 ML 320 CDI, 99 ML320 V6, 00 CLK430 Cab
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615 Posts
Discussion Starter #1
I'm starting to look at a 15 ML 350 4matic with 30k miles. I know that all models have issues or problem areas. I have an 08 ML 320cdi at present.
Are there any areas I should be aware of? Are there any problems with the Direct injection engine? Carbon buildup on valves?
I'd appreciate any experiences with this Model.
 

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08 ML 320 CDI, 99 ML320 V6, 00 CLK430 Cab
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615 Posts
Discussion Starter #2
Also do these models have start/stop on the engine? Can it be turned off?
 

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2015 ML250 Bluetec | 1987 560 SL | 2019 GLC 300 | Prev: | 2002 ML 500 | 2012 C250 | 1998 C230
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1,280 Posts
Are you looking at a diesel or gas? Diesel -- no, gas -- yes. Unless you're looking at a 250, and that engine is far superior and less problematic than the om 642's.

Re: the Eco Start / Stop. Run the VIN of the one you're looking at and you'll know if it has the ECO start/stop, it's code B03. Yes, you can turn it off, there's a button the dash. No, the truck will not remember the setting when you turn it off. There are mods to "fix" this though.

I'm starting to look at a 15 ML 350 4matic with 30k miles. I know that all models have issues or problem areas. I have an 08 ML 320cdi at present.
Are there any areas I should be aware of? Are there any problems with the Direct injection engine? Carbon buildup on valves?
I'd appreciate any experiences with this Model.
Also do these models have start/stop on the engine? Can it be turned off?
 

·
Registered
08 ML 320 CDI, 99 ML320 V6, 00 CLK430 Cab
Joined
·
615 Posts
Discussion Starter #4
Are you looking at a diesel or gas? Diesel -- no, gas -- yes. Unless you're looking at a 250, and that engine is far superior and less problematic than the om 642's.

Re: the Eco Start / Stop. Run the VIN of the one you're looking at and you'll know if it has the ECO start/stop, it's code B03. Yes, you can turn it off, there's a button the dash. No, the truck will not remember the setting when you turn it off. There are mods to "fix" this though.
Thanks. See you have a diesel. Had good luck with it? My 642 has been very good to me but I’m startinag to have some bad vibes at 126k.
 

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Registered
2015 ML250 Bluetec | 1987 560 SL | 2019 GLC 300 | Prev: | 2002 ML 500 | 2012 C250 | 1998 C230
Joined
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1,280 Posts
Thanks. See you have a diesel. Had good luck with it? My 642 has been very good to me but I’m startinag to have some bad vibes at 126k.
I have had no problems with the OM651, but only have 65k miles on it. However, take a gander around the forums, I bought this one knowing full well all the emissions crap may be giving me trouble soon, but I rolled the dice and have been very happy with it, and 600 miles a tank isn't too bad either. The fail points of the OM642 don't exist on the OM651, specifically the oil cooler seals if memory serves me right, so overall when I was doing my research, if you're going to be a knucklehead like me and still go for the diesel, go for the 250 over the 350.
 

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08 ML 320 CDI, 99 ML320 V6, 00 CLK430 Cab
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615 Posts
Discussion Starter #7
I ended up buying a 15 ML 350 gas. Just didn't want to push my luck with the diesels. I'll miss the mpg. It is one owner with 37k on it. Buying it from a Lexus dealer and they are treating me very well. The tires were about half worn and they are replacing them with good tires. I just worry about what oil they put in it.
 

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Equal Opportunity Offender
2002 ML320, 2005 S430 4MATIC RIP, 2010 F150 Crew Cab
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11,333 Posts
I think if everything checks out that you got a pretty solid W166. I, too, have been looking for a 2015 pre facelift model but COVID hit and we put off our search pending the outcome of this pandemic. I have driven around 9 so far, 4 of which have been 15's and all but one drove out great. One I drove had a grinding noise from the front and it was not a 4matic so I diagnosed it with bad wheel bearings. Dealer admitted that when they traded for it, they swapped out his wheels back for the originals so I would say the wheels being wider with extension caused the damage to the wheel bearings. Sales lady tried to blame it on the tires but I knew better. I couldn't wait to get out of it.
 
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