Expert: Don Berlan - 5/3/2006

Question
Hi,

I have a BMW 323i SE 1999. There are a few problems which have cropped up over the last 6 months.

1. For the last 3 months when I drive to speeds >85mph for a few minutes the yellow radiator warning light comes on and stays on until my speed has settled to <80mph for about a minute. If I slow right down then it goes off quicker. The car never overheats and the water level is not low. Any ideas?

2. The fan problem started a week ago. Essentially my radiator fan just runs continuously even when the ignition has been turned off. I actually have to physical unplug the power source from under the bonnet to get it to stop. Any suggestions?

3. I took my car to a local mechanic because the wheel beerings needed changing - left rear wheel I think. Since then the ABS warning light comes on intermittently. If it comes on at the start of a journey it will remain on the whole while but often when I next use the car it's gone. What do you think?

Many thanks

Saj Hayat

Answer
I believe the coolant level sensor may be at fault unless the level isn't correct.The engine is going at a good speed and if the level is incorrect it may think its low at slow speeds the coolant isn't going as fast.
Check your power inputs..relay?
And if the ABS light is on system isn't repaired.Did the wheel bearing get dammged when installed?