My wife started the car the other morning and the check engine light turned on, and she said the A/C wouldn't work. I checked the code and it came back (p0235 boost condition limit not reached). I just had the motor mount replaced could it be they knocked a hose loose (i haven't checked yet).Any help will be appreciated.

Thanks,
Anton

Checked the engine today no loose hoses. Any ideas??

I've never heard of that code before but the only thing I can imagine is that they took the vacuum hoses off the turbo transducer and put them back on wrong. I'll look at my car this morning and verify the correct positions and get back to you later.

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

OK, the hoses from the turbo modulator go as follows:

The inlet is a plastic line going into the center of the modulator. The feed to the wastegate is right next to it, also on top. The vent line runs out the bottom of modulator to a small filter on top of the fender.

The modulator itself is located under the hose leading from the air filter to the turbo inlet.

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

Thanks KarTek, my hoses are routed as you say yours are. Could the modulator be bad? is there a way I can test it?

Thanks again for your time,

Anton

There's a duplicate modulator on the opposite fender well. You can swap them and if the one is bad, usually a different code will be generated relating to the EGR.

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

Well I erased the code and been driving for about 100 miles and it hasn't turned on yet. If it does I'll switch modulators and see if does anything.

Thanks,

Anton

The vent filters get clogged sometimes. Can disconnect that vacuum line at the turbo transducer and see if you can blow through it easily. Filter is located by the top of the shock, next to the computer box.

__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

OK after about 600 miles the light is back on. Checked the filters they are good (I could blow air easily). I haven't switched modulators yet but I did notice they (modulators)make a buzzing sound after the engine is shut off. Is this normal?

Thanks,
Anton