For the longest time the automatic climate control on my 2000 GLE wouldn't work as far as heat was concerned: it would only blow heat when I would set it at 80 or so (in which case the car would get way too hot!) Then I had some unrelated work done (coolant flush, fuel injection, and replaced O2 sensor) and the heat started working. Recently, I got an SES light for the ignition coils--with further investigation, all 6 needed replacing. Soon afterwards the heat stopped working (only blowing very cold air). So I DIY replaced all 6 ignition coils, along w/ the spark plugs. The car runs a little better, but the heat didn't return. Then, randomly and hours later, the heat started working again! So things are fine, but I'm concerned that it will stop working again any minute. Someone told me it might be the heating core. Thoughts anyone? Thanks, Omar
- posted
18 years ago