Greetings,

This is my first posting on this forum, Chris told me about this site, I am very excited to come accross it and very thankful to Chris! Chris, remember me?? from Houston,TX?? about 300SDL??


I have just recently aquired a 1987 300 SDL with 96k original miles, 1 owner car, with all services from MB dealer and records in the glove! I think I was lucky until I get to this situation. This car was bought when it had a small damage on its Drivers side fender which damaged the spindle, both the fender and spindle were replaced. Its starts pretty good, and I wanna say it runs ok too, but I have my ABS light on constantly, the Tacho does not work and the A/C does not blow cold air ( does blow hot air, Freon is good), after my reasearch on the forums and under my hood, I noticed there were two relays missing, I figured out they were OVP and Refrigment compresser & cut off relay (both next to each other between the 2 firewalls). Installed a brand new OVP and a used compressor relay, now the tacho works intermitantly and the ABS goes off with it, I have noticed that both these work sometimes when I go over a pot hole of there is a sudden jerk due to uneven road or so. So sometimes when I am driving it, or stopped at a light, the Tacho comes on and the engine kinda revvs a little. What could be causing it?? BUT even when the tacho ABS work, the A/C does not blow cold air?? Have a look at this pic below.

Any suggestion would be very appreciated. Sorry about all the details, its just I believe, dignosing a problem is a bigger problem!!

Thanks
Mehdi

1987 300SDL 96k

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