BMW Repair: 1990 325i 4 dr. automatic, fuel line hose, razor blade


Question
1990 325i Questions:
What would cause engine coolant to be leaking onto the driverside floorboard? This is inside the car with no visible signs of leakage under the car.

My speedomoter reads 7 mph fast and my odometer has quit working. My tires and wheels are stock. What can I do to fix this problem?

The light bulb on my transmission shifter console has burned out. How do I replace it and what bulb should I use?

1984 733i Questions:
I also have a 1984 733i and the electric headrest have quit working. The motors in the seats still work fine but the headrest quit going up and down. How do I fix this problem?

Thanks a ton for your help and your website!

Best regards,
Dan Turner

Answer
a leaking heater core for the antifreeze in the floorboard,
All bmw speedos read fast there is a bulletin explaining it, however the odometer not working indicates you need to replace the cluster. You can shorten the cable on the headrest to correct the problem with  it. begin by removing the back cover of seat, finding cable, take razor blade carefully cut plastic cable housing, separate, cut an inch out splice back together with fuel line hose and clamps.