1987 300TD. All of the sudden my tach went dead, the abs light illuminated and low idle began. I checked the fuse in the overvolt protection relay (ovp) and it was fine. I adjusted the idle control knob but it has no effect. My cruise control works fine. Is there a way to jump the ovp relay or is it something else? Any thoughts?

Uh, Please update your CP to include the model of the car. Idle control knobs did not mix with ABS.

__________________
http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

1987 300td

__________________
Robert
1987 300TD

OVP relay replace or repair.these units can be repaired if your good with a soldering iron.usually broken or loose connections on the circuit board are the cause of failure

__________________
michael cole 1980 300SD gone now but not forgotten,87tdt,90 300te 4matic 95 e320 wagon

i've read on other post that if my cruise control is still working that it's not the ovp. is there a way to jump the ovp with a small length of wiring to insure that it is a faulty ovp?

__________________
Robert
1987 300TD

the OVP is there to prevent damage to the engine and ABS computers from overvoltage and spikes.i dont beleive it has anything to do with the cruise on this model

__________________
michael cole 1980 300SD gone now but not forgotten,87tdt,90 300te 4matic 95 e320 wagon

I had the exact same problem and my guy replaced the 10a fuse in the OVP relay on the firewall to the left of the brake resovoir. It pulls up and out and you flip open the plastic cover and check the red fuse. It's an american type fuse btw. That simple. Just wanted to let you all know what my experience was. dave

Anyone care to post OVP solder repair intructions?

Ovp

__________________
www.jerseyplanning.com
1987 300TD 440K - My car
2005 Jeep Grand Cherokee Laredo 107K - Tim's car
2000 - CLK320 100K - Deb's car
1994 C230 150K - Josh's Car