W210 320 CDI Lack of power

[BrabusD6*]

If you look near the brake servo you will see the vac pipes (plastic) that feed the EGR and Turbo, joined with a T-piece IIRC. You can disconnect these and blow down them to ensure they are not blocked

Cheers, will have a look as soon as i can...i hope it is this!

 

[BrabusD6*]

Thanks for this info, from experience i now know there are a few common issues on this engine. You're best off taking it to a Mercedes specialist to get it diagnosed properly

It could be the actuator and the turbo not kicking in fully
Leaks in the intake through split charger/inter cooler hoses/around the turbo intake
The inlet port motor that gets oiled up
Any number of EGR/DPF/O2 Sensors
Blocked air filters
MAF sensors

If you can, take it to someone that has been recommended to you locally

Its a headache when they don't run right, but when they do, its a really good engine!

 

[Danielprks]

My e320 cdi w210 has the same problem where the turbo actuator isnt moving and feels slow then goes into limp mode at times. started off by doing an EGR shunt - no good. Took the primary cat out - no good. took the back of the EGR off (without taking off the inlet manifold) and was covered in gunk. Where i used EGR cleaner pre turbo, it flushed all the carbon through the egr and into my vac lines where it then goes solid, blocking everything. So cleaned out the 2 transducers for the egr and turbo, vac lines coming off of the egr/ turbo and the 2 white vac lines going to the t joint then into the brake servo. used egr cleaner, welding wire and a hover to unblock the lines. also sucked on the vac line for a actuator which moved it.

SO, after cleaning all this up the turbo actuator STILL isnt moving so im guessing theres still no vac line pressure. So the next bet is to see if the brake servo vac pipe is clear and working. seen online that the valves in them can knacker out so this is the next port of call for me! just trying to find out how to remove it. Will get back to you once its done.

 

[BlackC55]

Look at my sticky in the engine section.