Luciano136

I've been a long time member on Benzworld (on my second ML at the moment) and looking to possibly pick up a '13 C250 as a daily for my wife. What's the latest on ECU tunes for this car? It seems like they were able to flash them after 2017 but I couldn't find a lot of info.

I'd need something that can pass smog here in Cali or easily reversed at the very least. With VW's APR tunes, smog is a non issue. Curious if there is something similar for the C250? Don't need a huge amount of extra power but a little extra oomph never hurts. I found the DINAN unit but that seems like just a piggy back and no regular ECU flash?

Thanks in advance!

Schnauzer75

I have a 2013 C250 that I bought last year and I couldn't find anybody I trusted to do an ECU flash. Ended up getting the Dinan tuner and a GFB diverter, both if which have worked well. I'm trading the car in soon so i have to sell the Dinan, but it was a good purchase.

Luciano136

Were are you located? Curious if it's an issue in Cali ?

Schnauzer75

I live in Orange County.

Luciano136

Oh, so do I! Still need to actually get the car but I may be interested in buying it from ya.

Schnauzer75

These cars are overall really good, except that you need to be sure the high pressure fuel pump is working correctly. I found out the hard way because I bought the car and a few weeks later I found out the pump was bad. Fortunately the dealership worked out a resolution.

The fuel pump worked fine in normal driving so on the test drive everything was good. After I bought it I found the car would go into limp mode whenever I drove aggressively, so I would lose power in the middle of fast-moving traffic on the 405. Not fun.

I would recommend when you test drive one to accelerate hard a few times to make sure the pump is working. I could get mine to go into limp mode by accelerating hard while manually shifting into 3rd and 4th gear, in either E or S mode. The car would then get a check engine light and lose power, and I would have to stop and restart the car.

The dealership cost to replace the pump is well over $1,000 or you can buy a reman for $600 and do it yourself. In other words, be sure it's good before buying the car.

Luciano136

Thanks for the heads up! I'm planning on a PPI at a German shop just in case. I'll mention this to them for sure. They can probably test the pump with their diagnostic tool.

ezshift5

[QUOTE=Luciano136;8036228]I've been a long time member on Benzworld (on my second ML at the moment) and looking to possibly pick up a '13 C250 as a daily for my wife. What's the latest on ECU tunes for this car? It seems like they were able to flash them after 2017 but I couldn't find a lot of info./QUOTE]

The C250 i got in 2014 is now driven by my new wife. She loves it. Admittedly she a gentle driver - so a tune was never an option.

Surprisingly, the little coupe has never had an issue. That would seem quite rare for these M271 4 cylinder turbos.


all the best,


ez

Luciano136

[QUOTE=ezshift5;8036949]Besides maybe the fuel pump, I haven't seen too many issues on the C250. Sometimes simple is good

xsever

[QUOTE=Luciano136;8037039]Do a bit of research on how the timing chain stretches with time on the M271 engine in the C250.

Luciano136

[QUOTE=xsever;8037124]I wonder how common this is with proper maintenance? Any idea on cost to fix? So, as long as there's no rattle, you're fine?

ezshift5

RE: PROPER MAINTENANCE.

Oil/filter changes per factory guidelines? Timing chain itself? Not aware of anything further.


ez

Luciano136

Lack of maintenance definitely won't be an issue under my ownership . I always do recommended maintenance per the schedule or early (I typically half the oil change intervals).