Where is the 01 Audi A4 horn relay located in the car

SOURCE: 2004 Audi A4 3L won't start

P0130 is 02 sensor bank 1 and P0150 is 02 sensor bank 2.

SOURCE: engine number location for 2002 audi a4

is it a 1.8 turbo or 2.8 V6 or 2.7 biturbo V6 ? on most models what you will be looking for is a 3 letter code like ATQ or APW and is normally on a sticker on the timing belt cover, it is also stamped into the engine on a ledge up high. if no luck there check the owners manual, around the 3rd page there will be a sticker that was put in the book during predelivery inspection this sticker is about 3 inches by 3 inches and filled with id codes for almost everything. If the pdi wasn't done right another copy of the same sticker will be under or next to the spare tire in the spare tire well.

SOURCE: Where is the AC Clutch Relay located on a Audi A4

Go to ebay motors and buy a repair manual on cd ($15.00) this will have a handy electric component locator in the software that wiill show a schematic illustrations of relays locations.

SOURCE: where is the fuel pump relay located on an audi a4

Behind left side of dash in 9 pin relay carrier.Relay #1 . There are 2 rows, top row 789, under that bottom row 123456.

SOURCE: wheres the horn on a audi a4

On the front of the vehicle under the front bumper, just in front of the radiator...they are round in shape.

Hope this helps

Jason