Audi a3 gear shift is stiff when engine is hot

SOURCE: Jerking problam Audi A3

Take out your MAF sensor, positioned on main air intake pipe to throttle and clean it with Carberetor Cleaning spray and away you go. this is the first thing to check and normally very common.

SOURCE: audi a3 1998 automatic transmission cannot shift into gear

if a standard check clutch

SOURCE: Intermittant misfire Audi A3 1.8T (1999)

Sounds like carbon build-up in the cylinders. Take it and have it put on a machine called a "Motor-Vac"

SOURCE: audi a3 1998 automatic transmission cannot shift into gear

have you checked the brake lights for operation ?
if they don't work than it is your brake light switch located on the pedal support bracket.

ElDopa

• 295 Answers
• Posted on Aug 17, 2009

SOURCE: Audi A3 Air Con Cut out

Happened to me too, when the ECO light comes on automaticly (and it only blows hot air) it means it's simply broke.

I don't know the exact production date of your car, but there is/was an airco-related dealer recall for some cars, so just contact your dealer and have it fixed, but don't forget to mention the recall (it might save you a lot of money when your warranty has already expired).