W203 C200 slow acceleration in low rev.
Thread Starter
Newbie
Joined: Aug 2018
Posts: 10
Likes: 1
C220 W205
W203 C200 slow acceleration in low rev.
Hello everyone. So I'm having a first generation W203 C200, the car is nice when driving overall, but it's been like 3 months, I'm feeling like the engine is having a bad time going up revs, until 2500-3000 rpm.
For example, going on a 2nd gear at low revs, and using all of the accelerator wouldn't make an acceleration until I pass the 2500-3000 rpm bar, and then, the car is gaining all it's power.
Plus, the car is sometimes putting itself in secure mode (not going up the 3000 rpm) and that's random, I have to manually turn off the engine and turn it back on to reset that locking.
Anyone has some ideas about what can make the problem ? DIAG didn't do anything in either secure mode or not secure.
Thank you everyone in advance !
For example, going on a 2nd gear at low revs, and using all of the accelerator wouldn't make an acceleration until I pass the 2500-3000 rpm bar, and then, the car is gaining all it's power.
Plus, the car is sometimes putting itself in secure mode (not going up the 3000 rpm) and that's random, I have to manually turn off the engine and turn it back on to reset that locking.
Anyone has some ideas about what can make the problem ? DIAG didn't do anything in either secure mode or not secure.
Thank you everyone in advance !
Thread Starter
Newbie
Joined: Aug 2018
Posts: 10
Likes: 1
C220 W205
Junior Member
Joined: Sep 2019
Posts: 73
Likes: 46
From: Reading, UK
2003 E55 AMG
Looking at the boost pressure via OBD, it appears the engine seems to apply boost in an almost binary manner (off/on) rather than gradually increasing it as the revs increase.
ive confirmed this is definatly software as the turbos actuator works perfectly fine (tested in DAS).
