To Invest or not Invest - C300 Longevity Question
I have a 2010 C300 Sport, Manual Trans, with 240k miles. Has been driving just fine and very few problems. Just brought it in to an independent MB mechanic (whom is very good), whom identified a host of issues that would end up costing a good bit more than the blue-book value (Radiator leak - the cause of this visit; thrust arm rattle/bushings, oil filter housing leak -- you get the idea).
The question is whether to invest and what I might expect in terms of durability/longevity of the car. I'm happy to spend the money if it isn't throwing good money after bad. Given the number of miles I'm not sure which way to go. Mechanic suggested that for the C-class I was nearing end of life and might not be worth the investment. Opinions? Anyone out there with high miles and/or similar situation? Many thanks in advance!




I just acquired my first W204 but I have had several Mercedes vehicles and so my advice is general and not specific to the W204.
These are excellent cars and properly maintained, you can get at least twice that mileage from it. The fact that it's a manual transmission is a very nice option that probably makes it a little more coveted (at least in the U.S.). Every Mercedes I've owned, I have sold in better shape than when I acquired it. That said, the ultimate question you need to ask yourself is what is the cost vs. benefit to you. If you love the car, the investment will pay itself over in the years of enjoyment you will get down the road. If you are looking forward to a more modern, hassle-free experience, then letting it go for a newer car would make more sense for you. Either way, you're going to spend money.
I have learned how to stretch my dollars wisely to keep my cars on the road as long as possible. Many things I tackle myself - I source the parts online for the best price and get dirty. For example, changing the radiator is something I could easily do myself and save several hundred dollars. Other things, such as a transmission service, I do not let anyone touch the job other than the dealer. Everything else is in between. I have certain shops I go to for certain types of repairs, other shops for others, balancing each shop's expertise and cost vs. the complexity of the job.
I know this is probably not the answer you were looking for, but if you invest some time in planning and do your homework, you can keep your C300 in top shape for a reasonable amount of expense. On the other hand, using that money towards a down payment can get you into a refreshed driving experience much sooner.
Final thoughts: Getting into another used car is almost guaranteed to require an additional investment into maintenance and repairs, with the additional headache of having to learn the car's quirks and behaviors.
Best of luck and keep us posted on which way you decide to go.
Last edited by EuroDriverSD; Feb 10, 2023 at 04:44 PM.
The point about maintaining another used car is well taken. Typically I buy cars just off of a lease so I know they've been maintained and generally have low miles.




You will never find a car for the money you will put into the repairs, and you know what you have. My 2 cents, …..
I have a 2010 C300 Sport, Manual Trans, with 240k miles. Has been driving just fine and very few problems. Just brought it in to an independent MB mechanic (whom is very good), whom identified a host of issues that would end up costing a good bit more than the blue-book value (Radiator leak - the cause of this visit; thrust arm rattle/bushings, oil filter housing leak -- you get the idea).
The question is whether to invest and what I might expect in terms of durability/longevity of the car. I'm happy to spend the money if it isn't throwing good money after bad. Given the number of miles I'm not sure which way to go. Mechanic suggested that for the C-class I was nearing end of life and might not be worth the investment. Opinions? Anyone out there with high miles and/or similar situation? Many thanks in advance!
Edit: Hmmm maybe I am mistaken with the engine code you have, sorry about that, you might possibly have the M272 instead.
Last edited by W205C43PFL; Feb 13, 2023 at 10:32 AM.
Trending Topics
I was quite taken aback by the initial recommendation from the shop that "it might be time", but all of your reassurances affirmed what I had originally been thinking and that this puppy has a lot of miles and good times remaining! Parts are ordered and repairs underway!
The Best of Mercedes & AMG
It threw a code and it was related to the tranny. It was going to cost me in the range of 3.5-6K to repair/rebuild or replace the tranny. If I went ahead with the repair, I'm confident it would go till 300K but I would only use it as my commute car and errands around town. But being I started to work from home, my driving miles dropped significantly. I could drive the car fine until it wouldn't shift pass 3rd gear.
I picked up my W204 to replace the Lexus and I got it for a really good deal that I couldn't pass up. I sold the Lexus and I don't regret, but if it was going to cost 2K to repair, I would have done it in a heart beat. At that point, the Lexus was going to be low maintenance due to lack of miles and insurance was dirt cheap.
You with 240K on your W204 makes me good know that my ride with 160K still has a ways to go.




I was quite taken aback by the initial recommendation from the shop that "it might be time", but all of your reassurances affirmed what I had originally been thinking and that this puppy has a lot of miles and good times remaining! Parts are ordered and repairs underway!
I was quite taken aback by the initial recommendation from the shop that "it might be time", but all of your reassurances affirmed what I had originally been thinking and that this puppy has a lot of miles and good times remaining! Parts are ordered and repairs underway!
So yup, go for it!
I have a 2000 Ford F150 beater truck with the 4.7 liter engine and 225k miles. These engines are notorious for blowing spark plugs out of the head. I've had two blow out in the past and it costs about $200 to repair each time. Six more and the truck would be "totaled". Would I not repair it? No because it's hard to find another truck for $1200 to use for my purposes that wouldn't also have problems.




One other thing. Make sure to check your drive belt if your oil filter housing is leaking. Most of the time the oil leak contaminates the drive belt and you must replace it.
Last edited by shotgun_banjo; Feb 16, 2023 at 07:06 PM.






