All:

I have a 89 190e 2.6 with intermittent ABS light on followed by CE light that causes engine to stutter and fail...hard start and rough idle as well.

I pulled the OVP and did the "shake" test...old OVP rattled like a tin can with a coin in it, so I just replaced it this morning with an OEM Benz part fromt the dealership...made absolutely no difference. ABS light is still coming on intermittently and CE light will reappear causing engine stall.

Before replacing OVP relay, I changed fuel filter, plugs, and new injectors and seals...absolutely no difference in idling characteristics.

Today, Im also noticing that the defog vents on top of the dash are blowing hot air. None of the switches or the fresh air vent is switched ON at the console, but Im still feeling very hot air blowing from the right and left dash vents and the defog vents...additionally, from time to time, I get a whiff of antifreeze, but strangely, the antifreeze level is good, and I see no leaks anywhere (although I have not pressure tested system yet)???

Before I unlaod this car, what additionally can I check for? Is this hot air/antifreeze smell related to OVP relay somehow (although this doesnt seem logical)?

Do I have to reset the computer and erase all the codes for the new OVP to work properly?

Can someone help??? I've read about 100 OVP and CE light related posts....so I'm in the dark on what to do next.

Thanks in advance for the help.

ICH