Car Doctor: Why does my ABS light stay on?

Q. I get a lot of wind noise from the driver's door mirror area, where it looks like some trim is missing. Is there any way I can stop it?
S. Martin, Brighton

Q. I get a lot of wind noise from the driver's door mirror area, where it looks like some trim is missing. Is there any way I can stop it?
S. Martin, Brighton

A. It sounds like the window channels have lost their lubrication and one has slipped into the door itself. Lower the window fully and if you can, get hold of the visible part of the channel with pliers. As you raise the window pull the channel up. Do this until the channel is in place, then use fix it back into position with glue, then spray a lubricant (such as WD 40) into the front and rear channels. The window should move faster and journeys should be quieter.

Q. The ABS light on my dashboard stays on. My garage looked at the contacts at wheel level and told me it was fine. I have noticed that if I turn off the engine and then start again the light goes out.
W Tiner, Hounslow

A. It sounds like a sensor in the system is sticking on initial start-up. Get an electrician to look at the wiring diagram to see if there is any link between the circuits for the handbrake warning and low brake-fluid level warning lights.

Q. I have recently bought a car with a rebuilt engine, including all new ancillaries such as water pump, temperature sender and thermostat. Why when I start the car does the temperature go straight into red. The top of the radiator is hot but the bottom is cold.
M. Bassett, Derby

A. The flow through the radiator must be blocked, especially as sediment collects about halfway down. It may need to be flushed out, perhaps get it checked properly by a radiator-rebuilding specialist.

* CAR DOCTOR: Write to Car Doctor, Features, Independent House, 191 Marsh Wall, London E14 9RS, or email: cardoctor@independent.co.uk