How reliable is the E55?
I’m coming here from the W212 section of the forums. I currently drive a 2011 E550 with 72k miles.
I have recently been considering trading with someone who has a 2006 E55 with 156k miles as I want something with some more power and I have a few questions.
the owner says it has been meticulously maintained and has a lengthy description to it. Is there any serious reliability issues with the e55? Any other issues I should know about? I’ve also posted a screenshot of the description I was given. Let me know your thoughts, thanks for any help in advance!
Do you think my trade would be a good one? I am skeptical of the 165k miles as every gasket and piece of rubber has to be replaced. The owner claims to have meticulous maintenance however I will have my Mercedes mechanic do a very rigorous inspection to determine what has to be replaced




Last edited by E55Greasemonkey; Apr 4, 2021 at 08:16 PM.
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Definitely get a pre purchase inspection. I'd recommend getting it done at a MB dealership. They will do an extensive look over the car and give you a great report. At that point you will decide whether it is worth it. My E55 has never left me stranded anywhere like I mentioned earlier, but she will burn you pretty good with the maintenance costs. The mileage shouldn't be too big of a concern as I've seen plenty of E55's running strong with 200k+ miles. If the car has truly been meticulously maintained and cared for, mileage shouldn't be a problem.
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If it were me, I'd gladly purchase a meticulously maintained E55 with 156K that is bone stock.
If you want a reliable car, get a Toyota Camry. My wife had one when we were dating. she put 300k miles on that car, and didn't do a damn thing except irregular oil changes and tires when the cords showed. My wifes current car, a 2008 Ford Escape, 2wd manual trans with the 2.3l Duratec has been pretty reliable. 155k miles with only a couple of minor repairs. I've spent more on tires for our E55 than we have ever spent on our Escape.
My truck is a 1999 Ford F350, with the 7.3l turbo diesel and a manual transmission. by most accounts, this is considered to be one of the most "reliable" vehicles on the planet. By some measure, I guess they are right. its over 20 years old, has 340,000 miles and I regularly drive it across the country pulling a 14k trailer at 90mph. But at this point in time, I've replaced dang near every part on that truck except for the long block. I have spent more money on engine repair, maintenance and upgrades on that truck then I did purchasing my E55 Wagon. (in all fairness, I've also tripled the power output. A set of 250/200 single shot hybrid injectors is $3,000 alone and requires significant supporting mods).
I much prefer to use the word "robust", I think my F350 and E55 fall into this category.
The E55 is an excellent vehicle that is built very well. Its not likely to have many mechanical problems, it does not have that many serious issues. The issues it has are well known, and remedies have been supplied by either the aftermarket and/or the manufacturer. It is also a very repairable platform. Its not that hard to work on, not many special tools are required and parts are generally available. The platform gets good aftermarket support. Economically speaking, its a car that makes sense to fix when something breaks. The car is aging well, and as we discussed in another thread good examples are likely going to maintain value from here on out.
I think its wise with any used vehicle that you have a good understanding of your personal limits as far as finances and wrenching are concerned. Doing your own maintenance will save you a significant amount of money.
At any rate, if you are willing to invest the time and/or the treasure I think any W211 platform car is a good "robust" platform that is very much worth owning, even with high millage.
If you want something "Reliable" I think you need to own a very simple vehicle, which an E55 AMG is certainly not.


If you want to know whats unreliable go buy a 955 Cayenne of similar vintage and see the issues those POS give you (iv got two of the bloody things atm and both are off the road). They are actually imo a very similar car to an e55 with the computers and airmatic and how all that chit works. They are horrid things to work on compared to the simple supercharged setup on the E55. Intercooler piping and hoses all over the shop and even doing something simple like a valve cover gasket is a bit of an ordeal on those.
Basically any mercedes with the m113 or m113k is as good as it gets as far as older mercedes and german performance cars go. The supercharger setup is simple and theres no bull**** *** VVT solenoids, dodgy flappy paddle gearboxes and crap to deal with.
Give these cars a birthday when you purchase them and they are very reliable.
Last edited by austingtir; Apr 7, 2021 at 04:27 AM.

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If you want a reliable car, get a Toyota Camry. My wife had one when we were dating. she put 300k miles on that car, and didn't do a damn thing except irregular oil changes and tires when the cords showed. My wifes current car, a 2008 Ford Escape, 2wd manual trans with the 2.3l Duratec has been pretty reliable. 155k miles with only a couple of minor repairs. I've spent more on tires for our E55 than we have ever spent on our Escape.
My truck is a 1999 Ford F350, with the 7.3l turbo diesel and a manual transmission. by most accounts, this is considered to be one of the most "reliable" vehicles on the planet. By some measure, I guess they are right. its over 20 years old, has 340,000 miles and I regularly drive it across the country pulling a 14k trailer at 90mph. But at this point in time, I've replaced dang near every part on that truck except for the long block. I have spent more money on engine repair, maintenance and upgrades on that truck then I did purchasing my E55 Wagon. (in all fairness, I've also tripled the power output. A set of 250/200 single shot hybrid injectors is $3,000 alone and requires significant supporting mods).
I much prefer to use the word "robust", I think my F350 and E55 fall into this category.
The E55 is an excellent vehicle that is built very well. Its not likely to have many mechanical problems, it does not have that many serious issues. The issues it has are well known, and remedies have been supplied by either the aftermarket and/or the manufacturer. It is also a very repairable platform. Its not that hard to work on, not many special tools are required and parts are generally available. The platform gets good aftermarket support. Economically speaking, its a car that makes sense to fix when something breaks. The car is aging well, and as we discussed in another thread good examples are likely going to maintain value from here on out.
I think its wise with any used vehicle that you have a good understanding of your personal limits as far as finances and wrenching are concerned. Doing your own maintenance will save you a significant amount of money.
At any rate, if you are willing to invest the time and/or the treasure I think any W211 platform car is a good "robust" platform that is very much worth owning, even with high millage.
If you want something "Reliable" I think you need to own a very simple vehicle, which an E55 AMG is certainly not.






