E-Class (W212) 2010 - 2016: E 350, E 550

What to check/ replace before warranty runs out

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Old 10-24-2019, 10:16 AM
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2019 E63s
What to check/ replace before warranty runs out

My 2012 E550 4matic sedan is going in to the dealer for an air suspension issue next week. My MB extended warranty is running out next month. What are the wear items (or commonly failed parts) I should have the dealer look at while they have my car next week? Thanks in advance.
Old 10-24-2019, 10:37 AM
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it seems the w212 have the issue of motor/transmission mounts going bad in about 70K to 80K miles. Dealer acts like it's no big deal and probably isn't. You might just want to take look now and see worn they are today.
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Old 10-24-2019, 11:03 AM
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1922 Ford Model T / no OBD
Check front CV boots and if MM are covered, try to push their replacement regardless the shape. Modern sedan MM last aprox 80k miles, so you will need them rather sooner than later.
Than inspect, inspect, inspect. Driving the car daily we tend to get used to facts that door need extra push to close, switch some wiggling to work and ignore small noises.
So getting mechanically-inclined friend for small ride might be good idea.
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Old 10-24-2019, 11:14 AM
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In addition. see attached PDI go through thorough self-inspection before bringing it in, any problems bring it to their attention. Since they will be performing work request SDS quick test after repair clearing/identifying any/all fault inclusive of providing results.

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Old 10-24-2019, 03:43 PM
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2012 W212 E550 Sedan
Might be worth a compression leakage test and see if they can camera scope the engine for severe carbon buildup and/or cylinder wall scoring? See if anything comes back out of spec?
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Old 10-24-2019, 04:57 PM
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1922 Ford Model T / no OBD
The real compression test is pretty hard to do on modern engines, but even $150 priced scanners offer smoothest test.
I am from old school. Taking the car on back road and punching gas pedal from stand still to compare 0-60 times to factory data always works for me.

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