2011 ML350 Bluetec - Mercedes-Benz Forum
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post #1 of 13 (permalink) Old 05-13-2019, 09:36 PM Thread Starter
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2011 ML350 Bluetec

All,

Finally looking at replacing my 2005 ML350 with 180,000 miles on the clock. Have been looking at a 2011 ML350 Diesel. Has about 65000 miles on it and they are asking $13,000. How is the reliability of these engines? The Jeep and Audi engines seem to be having some major issues...wondering how the MB's hold up.

Thanks for your help!
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post #2 of 13 (permalink) Old 05-13-2019, 10:03 PM
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And so do the M/B diesels, maybe worse.
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post #3 of 13 (permalink) Old 05-13-2019, 11:10 PM
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The engine itself seems very durable. Some common issues of the OM642 diesel engine are the timing chain and oil cooler seals. Part for the oil cooler seals are pretty cheap but it involves lots of labour.
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post #4 of 13 (permalink) Old 05-14-2019, 02:47 AM
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Lots of maintenance and issues as well. The oil coolers seals will need to be done for sure. The heat will also most likely melt the grey dampening rubber in your motor mounts as well. The heat typically causes the timing chain to expand. You may hear a slap when the vehicle starts when this occurs. There are several threads about this as well. The oil is a little more pricey as you will need to use an ESP formula. Turbo seals, air filters, and fuel filter need to be changed every 20,000 miles. I would enquire about the maintenance history as well. See when the oil cooler seals were replaced and also if the additive tank/heater have been replaced as well. That is the next major issue. Personally I would see if you can afford a 2015+ (166) with the OM651 4 cylinder. That is a more reliable Diesel engine with fewer issues.


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post #5 of 13 (permalink) Old 05-14-2019, 05:33 AM Thread Starter
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Thanks Guys,

I don't really need a diesel, I will be towing a 4,500 lb boat and trailer about a mile twice a year. Long ago diesels were the engines that lasted the longest. It seems that is no longer the case. I also figured I could get one reality cheaply due to diesels generally falling out of favor....maybe there is a reason for that.

So maybe I'll just start looking around for a clean gas version. I have had a lot of luck with the 2005 assuming its because its the last year of the 163. Can I assume the 2011 164 would have similar durability? I actually prefer the body style of the 164 over the 166.

But I'm wide open here...don't need to get rid the 163 today....any suggestions on a year that is a sold product? I was looking at Grand Cherokees but I am really afraid of their reliability...not sure I'm not getting to 180,000 in one of those..

Thanks!
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post #6 of 13 (permalink) Old 05-14-2019, 05:39 PM Thread Starter
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Bumping this up so I might get some good intel on a 164.

Thanks
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post #7 of 13 (permalink) Old 05-14-2019, 05:44 PM
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Depending on what options you want there are plenty of decently prices 2010-2011 ML350 and ML550ís our there. The later 272 and 273 engines are pretty reliable. The air suspension on the 550 is nice but it takes some up keep. Please continue to use the forum to ask any questions you may have.


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post #8 of 13 (permalink) Old 05-14-2019, 06:03 PM Thread Starter
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Originally Posted by james.calton1 View Post
Depending on what options you want there are plenty of decently prices 2010-2011 ML350 and ML550ís our there. The later 272 and 273 engines are pretty reliable. The air suspension on the 550 is nice but it takes some up keep. Please continue to use the forum to ask any questions you may have.


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Yea thanks...I have been concentrating on 2011 mostly....the few nice ones I have found are a little pricey....$20K for a 350 with 37K - 42K miles..

Im going to keep looking
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post #9 of 13 (permalink) Old 05-14-2019, 06:04 PM
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There are plenty out there.


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post #10 of 13 (permalink) Old 05-15-2019, 03:40 PM
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We bought our 2010 diesel to tow long distances. The oil cooler seals had already been done, but I had to fix the ignition switch and a couple o rings. Since then it's been fine.

But just get another ML350 if you aren't towing that much. As usual buy the newest you can afford, I believe the first few years of the W164 had more issues than later.

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