I have problem with my 220 cdi '98. Trouble code says P1403 (exhaust gas recirculation - HFM-regulation).
I cleaned the EGR valve completely and changed the hot film meter but nothing changed. On the highway the car drives smooth, but once the car turns on idle it switches to secure mode and I lose all power.
To reset it I have to turn off the engine and re-start.
Any idea what can cause this?
Thanks!
I have exactly the same problem with my MB E290TD. The same DTC, also changed MAF, also need to torn of the engine for 5-10 sec to get the engine running well. And I checked all vacums - they are all good.
Also I have changed egr transducers (both of them) for two times, didnt helped.
Cleaned and checked for holding vacum EGR, good - didnt helped.
It seems like a mechanical problem that affects the electronic seestem - but i can not figure out what ir is.
The strange thing is that you can tur engine on in the morning and it can imediatly cach the foult. But there are days that you can drive all dai long and the car will run fine. That pises me off. Because I have done everything that can be done - but NO ONE can tell the exact explonation of the P1403 (exhaust gas recirculation - HFM-regulation). Every explonation is a quess.?
Szia! Nekem is ugyan ez a probl?m?m. Segits k?rlek ,hogy tudt?tok megcsin?lni .Az ?n aut?m is E290 td .
Egr szelepet most cser?ltem . de ugyan ?gy tilt?s van. hiba k?d P1403.
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It sounds like you have a vacuum leak somewhere between your valve and your source. A common vac leak that occurs on the 220 is at the vac. rubber y located at the back of the intake manifold. Follow your vac. line from the egr to the switchover valve and from the switch over valve to the source. Which is probably the y connecter
Jackers start your own post, OK?
and not mix yours up with 3 other jackers. and OP./
that is asking for lies, guessing and wrong answers
1990s cars had horrible EGR then
the top failure besides the EGR main valve
is the exhaust path through all that is carbon packed up. and we cleaned that path up end to end.
newer cars EGR main is elect motor drive.
old cars are RUB GOLDBERG horror.
no 220 sold in USA< parts house shows none.
secure mode means limphome mode I guess
ASE names I use not German.!
C220 or E220 or S220?
the old cars 1998 has vacuum operated EGR mains
and all cars EGR is off line at IDLE and WOT
and if stuck open at idle engine stalls or shakes hard at 400 rpm no 800 normal
the tests done are>
1: make sure main closes at idle
if not it is bad or vacuum to it is wrong
if vacuum is correct and valve is good
then the exhaust path is bad.
1,2,3 test
if vacuum fails that is tricky how that works, ASK
I have the same problem with my w202 cdi '98, wath is the solution?
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