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It could use a little paint correction and the seats are screaming out for some conditioner, but it looks in decent shape. There is a local indy shop that my buddy took his MB to, so I'll probably have them give it a once over. Any particular items or issues I should be particularly aware of (I've read there is some issue with oil seeping into the engine harness, and opinions are varied about the Airmatic suspension)? Thanks in advance. Super excited to pick it up on Friday!




It could use a little paint correction and the seats are screaming out for some conditioner, but it looks in decent shape. There is a local indy shop that my buddy took his MB to, so I'll probably have them give it a once over. Any particular items or issues I should be particularly aware of (I've read there is some issue with oil seeping into the engine harness, and opinions are varied about the Airmatic suspension)? Thanks in advance. Super excited to pick it up on Friday!
, and welcome to the forum.On the concerns, since it has low mileage but 10 years, it must be coming for a spark plug tune up. If possible, it will be a great opportunity to put a camera through some of the cylinders (all would be great) and check for scoring of the cylinder walls.
Regarding the harness issue, please check your camshaft sensor and solenoid connectors as soon as possible. This issue is not correlated with mileage, so better earlier than later. Regardless if they are leaking or not, you may have to include this check on your oil maintenance schedule as another tick box. Many forum members have changed/recommended to switch from 0W-40 to 5/10W-40 as long as you use an MB-approved oil brand (https://operatingfluids.mercedes-benz.com/ ) , and reduce the oil service interval from 10K miles to @5K miles. A few extra $$ can save you $$$$.
Since we can see all the photos and the video on the link, perhaps a recording of the engine itself would entertain those here.
Also, with the Engine Serial number you should check the attached documents and see where your engine falls.
Last edited by JCM_MB; Aug 9, 2023 at 12:09 PM.
I believe yours is M276 non Bi Turbo engine but some prefer it over the Bi Turbo M278 engines . Well, Airmatic might need maintenance and yours is no exception either , Given age of your car airmatic system parts need to be replaced . It may sound costly but believe in me , it's not like regular replacement units that should be done every periodic maintenance schedule .Mileage is low for your car but airmatic ,as I recall, every 10 years maximum needs service
Happy Driving
I believe yours is M276 non Bi Turbo engine but some prefer it over the Bi Turbo M278 engines . Well, Airmatic might need maintenance and yours is no exception either , Given age of your car airmatic system parts need to be replaced . It may sound costly but believe in me , it's not like regular replacement units that should be done every periodic maintenance schedule .Mileage is low for your car but airmatic ,as I recall, every 10 years maximum needs service
Happy Driving
Nice choice and I hope she treats you well for many more years.


The big issue was the A/C was not blowing cold air. The dealer took it to a shop he utilizes and, after they vacuumed and refilled the system, and changed the valves and o-rings, it held pressure and worked.
Other than the wood trim, the interior is in great shape. These seats are amazing. The car has that old school MB smell. I was surprised a car that cost 75k in 2012 didn’t have remote start. There are a few paint nicks, as you’d expect in a nearly 12 year old car, and the bumper may need a respray if my OCD gets the best of me, but I love the color and depth of the paint. Excited to tinker with my new toy.
Last edited by MDPensfan; Aug 12, 2023 at 07:59 PM.
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