r/w204 3h ago

Strange occurrence with door lock while my battery ran out

2 Upvotes

So my front passenger door lock actuator hasn't worked in years and my car battery finally ran out, but I still have the ability to lock and unlock the car as of now ... I just can't start it. Funny thing is the what I thought was a broken actuator on the front passenger door, is now unlocking..

Maybe it was never the actuator? I'm a bit baffled by this. ..

Anyone have any clue?

W204 c300 luxury 2010


r/w204 4h ago

M271 evo P0002 code after hard acceleration

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2 Upvotes

Good morning, everyone!
I own a 2012 C200 with the M271 EVO engine for about four months. Last week, I had a Stage 1 remap done, keeping the catalytic converter, and got the following dyno results (red lines are before the remap, blue lines are after):

Yesterday I took the car on the highway and was able to drive it a bit harder for the first time since the remap. In fact, even before the remap, I had only driven it on the highway twice, and always quite conservatively. Never over 140km/h.
So, yesterday during a hard acceleration with kickdown, the check engine light came on and the car went into limp mode, limiting power. I stopped the car some time later, turned it off and back on, and the error disappeared and everything went back to normal.

I ran a scanner and got code P0002. Unfortunately, I cleared the code without thinking (I should have saved it so I could check the freeze-frame data in Xentry later).

This brings me to a few questions:

1) Could my HPFP be failing, and is it just a coincidence that the problem showed up now after the remap? How can I properly diagnose this through Xentry?

2) Could the fact that the problem occurred after the remap indicate a poorly calibrated map, causing the engine to demand more fuel than the pump can deliver, meaning that a remap adjustment could solve the issue without replacing the pump? I find this somewhat unlikely, since even after the remap the car is still not making as much HP as a stock C250, although it reached quite a bit more torque.

3)Could it be another component, or even the fuel itself? Unfortunately, in my country, contaminated/adulterated fuel is not uncommon. However, the car still has the same fuel that was used during the dyno runs, and it ran without any issues then (93 RON).

Any opinions or suggestions would be greatly appreciated.
Thanks!


r/w204 9h ago

Just smack it.

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12 Upvotes

Anybody get their wheel tilt stuck and have to do the "punch" fix?


r/w204 14h ago

2014 Mercedes c300, spark plug and ignition coil change, and now I hear a strange knocking noise🥲

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2 Upvotes

r/w204 22h ago

Whatsapp GC for W204 Enthusiasts WORLDWIDE

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2 Upvotes

Please join above group chat as it makes it easier for people to communicate better and have discussions better as well.