C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

Questions about C250

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Old Nov 1, 2014 | 02:15 AM
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chazzz's Avatar
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From: Southern California
'05 MBZ C230K and '09 MBZ C350
Questions about C250

I am seriously thinking about buying an used Mercedes C250 (2010 or 2011). Is it a good buy or ??

Questions:

1) The C250's 1.8 liter four cylinder engine came with direct injection (DI). How do I get rid of carbon-build up inside of intake ports? Do I take it to Mercedes dealer and have them to clean them every, say, 30k miles?

2) My wife owns a '05 Mercedes C230 Kompressor. I've driven it a lot and it's a really nice car because of excellent MPG. While driving it on the freeway at 80 MPH, the engine turns at 3,100 RPM (approximate). The C230 has a five-speed auto transmission. What is RPM at 80 MPH on C250 with seven-speed auto transmission?

3) If you think C250 isn't a reliable car because of expensive repairs such as cleaning the intake ports, EIS (key ignition), etc. What is your opinion of 2008 or 2009 C350 (M272 V-6 engine)? Is it more reliable than C250?

I really like C250 because of a good balance between fuel economy and strong turbo-charged engine. I also like C350 because of better acceleration (0-60 in 6.1 seconds).

thanks
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Old Nov 1, 2014 | 09:03 AM
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2026 GLC300 4Matic (X254)
If you are in the U.S., you can only get a C250 in 2012 or later. We haven't seen any DI carbon deposit issues yet. I think we are all hoping MB fixed the issue before U.S. implementation. They had years to watch BMW/VW/Lexus develop issues.

The EIS/ESL issues are problems for all W204 variants.
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