Throttle/rev problem after 5 min driving
Thread Starter
Newbie
Joined: Oct 2017
Posts: 4
Likes: 0
Mercedes W211, E270 CDI
Throttle/rev problem after 5 min driving
Hello all. I am new to the forums and quite new to cars.
CAR: W211, 2003 E270 CDI, 270000km
What was done recently: the car had egr valve cleaned, intake manifold flaps engine replaced (small part, used, for about 40eur) - engine to move the flaps i mean.
Before the repairs the car had completely no power, 1st gear revs to 2.5k and thats it. Other gears lower than that and throttle response is poor.
no check engine light.
My recent symptoms: start the car up, drive 5-6 minutes and 70% or the time, after those 5-6 minutes, the car jerks a little bit (as if you would be out of fuel), and then any throttle pedal movement basically gives an extremely small amount of power and same symptoms as before.
no check engine light.
The service tech expects intake manifold flaps problem - replace the whole manifold
the service tech now disconnected the egr valve as well as they were getting both air amount code and the egr valve code.
And now the car has full power all the time but check engine light is on, of course.
Anyone had similar symptoms?
Could rhis be simply a bad egr?
CAR: W211, 2003 E270 CDI, 270000km
What was done recently: the car had egr valve cleaned, intake manifold flaps engine replaced (small part, used, for about 40eur) - engine to move the flaps i mean.
Before the repairs the car had completely no power, 1st gear revs to 2.5k and thats it. Other gears lower than that and throttle response is poor.
no check engine light.
My recent symptoms: start the car up, drive 5-6 minutes and 70% or the time, after those 5-6 minutes, the car jerks a little bit (as if you would be out of fuel), and then any throttle pedal movement basically gives an extremely small amount of power and same symptoms as before.
no check engine light.
The service tech expects intake manifold flaps problem - replace the whole manifold
the service tech now disconnected the egr valve as well as they were getting both air amount code and the egr valve code.
And now the car has full power all the time but check engine light is on, of course.
Anyone had similar symptoms?
Could rhis be simply a bad egr?
Thread Starter
Newbie
Joined: Oct 2017
Posts: 4
Likes: 0
Mercedes W211, E270 CDI
Thread Starter
Newbie
Joined: Oct 2017
Posts: 4
Likes: 0
Mercedes W211, E270 CDI
Member
Joined: Jun 2016
Posts: 161
Likes: 33
From: Orlando, Florida
2005 E320 CDI (SOLD); 2008 ML320 CDI 4MATIC
CDI control unit is putting car into a pseudo limp mode that governs engine's RPM to not exceed 3K though doesn't always trigger CEL so real-time OBDII data should be monitored to reveal which codes come up during operation. I suspect positioning motor of swirl flaps is intermittently binding but could be VNT (variable-nozzle turbo) related also or air intake sensor or EGR damage. Understand this car is heavily dependent on computerized components to run so need a computer that can talk to it for proper diagnosis. A bootleg SDS system off Alibaba will pay for itself with 1st use as it eliminates diagnostic fee dealer of mechanic will charge to use theirs.
