91 Golf GL Various problems

On my Rabbit I caulked all around the fresh air intake behind the firewall on the passenger side. Your car may be the same. Also look to see that water drains from that area properly.

Unplug wiper connector back at hatch. Try new fuse and engage with wiper still electrically unplugged. Report back.

Are you saying the starter motor turns slow? New battery.

Runs rough after start. Dirty and leaking injectors.

Higher idle when defrost on. Many cars engage AC when defrost runs. AC en gauged means something bumps up idle to compensate for load of AC compressor.

Idle speed related to blower speed suggest bad blower switch as idle boost should happen at anyth>Hi everyone.

Adding to what Jim said.

1. Check the inner door panels. If someone tore that plastic water can easily get inside the cabin that way. Also check the door drains. If the plastic is torn just buy the kit to seal house windows (plastic and double sided tape) which is what VW told me to do. If you have a sunroof check all 4 drains for that too! My old '91 Passat leaked from the roof panels and it had no sunroof! 8^o

1. What Jim said. Also see what other components are on that circuit and not working!

2. Battery or cables, clean and tighten all connections. I have seen bad cable ends that attach to the starter. Also those cables could be a thicker grade. ;-) If this is a Digifant engine, then check the ground wires at the cylinder head and the wires to the throttle switches. They are known to break. Has this engine been tuned lately? Have you checked for any vacuum leaks too?

Check that battery. A dying battery can create all kinds of problems in these cars.

On mine, the problem was caused by the wires fracturing where they come out of the roof panel on the left hand side. I guess years of opening and closing makes the wires weak?

Neil