Hello All, happy Friday! My 1986 BMW 325es runs hotter in traffice and when I am on highway (or motorway for you Europeans!) it cools down a little bit.
The car has 215k miles on it and eversince I put a performance chip in it (bought it online) it runs great (have to use 91 octan fuel though) and I do get aroung 26MPG on highway.
When I am driving in traffice the gage shows it is at 1/2 marker point but on highway it moves down a little bit and stays in between 1/4 and
1/2.I just drained the coolant and put new antifreez in the car thinking that it might help but it did not. Could it be the thermostat? The fan blades look normal and raditor does not leak at all.
The car runs fine even in traffice but I do get the antifreez overheating smell that you usually sense when cars overheat. Smell is obviously stronger when you open the hood.
Any ideas anybody?
Thanks in advance.