Where is the fuel pump rela a3 2005 - 2005 Audi A3

First off it's never a good idea to start an engine on brake cleaner so I would get it taken to a real mechanic shop. Second it could be alot of things from fuel pump to a mass air flow sensor. More than likely its a fuel issue. Check all fuses and If blown replace them with same size fuse. Check again to see if it starts if that doesn't work Check the rela for fuel pump you may be able to swap it out with another one in different location in panel see I it works. After this I it still won't start you need a scan tool. Good luck

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PCV, gear box, owner's/service/repair/parts manual, fault codes, error codes, etc everything on all vehicles. must check it out

Did you check the fuses thay relay has power at all times when key is on but when starting there are other leads thay have to have power also

is there any check engine light on?

WHAT WOULD U LIKE TO KNOW ,JUST RELAES THE BOLTS ON THE ALTERNATOR AND PUT ON A KNOEW BELT THERES A BOLT ON THE ALTERNATOR THAT SLIDES IT UP AND DOWN OR SIDE TO SIDE : : )

Your problem sounds like a dirty, blocked or faulty gauge sensor which is inside your fuel tank. google search or find a service manual that will tell you how to remove the fuel tank to acess this sensor.

The fuel pump rela is located under the hood, driver side, front side of strut tower, rear of headlight, mounted on inner fender well.
However I do suggest jumping the fuel pump to see if pump turns on. Test voltage from ECM if needed. If voltage is to pump, then pump is shot. If not voltage, relay may be bad.
If pump works on jumping it you may have to try and start 5-10 times aka couple minutes. If pressure is still not building and pump is on, then you may want to consider testing the fuel pressure regulator. voltage regulator will handle amount of fuel pressure being delivered to the system. You can test with voltmeter to see if you are getting any voltage to the regulator.

Fans only last a short while before the motors burn out... Run 12 volts to the fan and see if it runs.. Bet you need a new fan assembly.

not relaed, just bad luck! you need to get ot scanned to see what airbag sensor is bad, thats why its blinking  GOOD LUCK!

you have fuses there and in the van by the drivers side instrument panel.

here's how to change,
Fuse — Main Fuse Junction Panel NOTE: The MAIN and ALT fuses are high ampere cartridges that are held in place by screws, which must be removed in order to replace the cartridge. For removal of the MAIN or ALT fuse, refer to the procedure in this section. Always replace a blown fuse with a new one having the same amperage rating.

Removal

1. Remove the appropriate fuse panel cover (14A003).
   

1. Pull the fuse straight up from the fuse junction panel (14A068). If the fuse is a cartridge-type, carefully pry the clip, then pull the fuse straight up.
   

I would also check relays, including inhibtor relay. relas have a relese tab.


Item Part Number Description 1 14N089 RAD FAN — LO (Low FC Relay) 2 14N089 RAD FAN — HI 1 (High Fan Control [ FC] Relay) 3 14N089 RAD FAN — HI 2 (High FC Relay) 4 14526 PWR WDW 5 14526 ABS (Anti-Lock Brake System) 6 14526 RAD FAN 7 14526 FRT BLWR (Front Blower Motor) 8 14526 MAIN 9 14526 RR DEF (Rear Defroster) 10 14526 ALT (Generator) 11 14526 IGN SW (Ignition Switch) 12 — Joint Connector 13 14526 H/L RH (RH Headlamp) 14 14526 H/L LH (LH Headlamp) 15 14526 ALT (Generator) 16 14526 ENG CONT (Engine Controls) 17 14526 INJ (Injectors) 18 — SEC (Smart Entry Control) 19 — Hoodlamp 20 14526 ABS (Anti-Lock Brake System) 21 14526 HORN (Horn Speed Control) 22 14526 Fuel Pump (PCM) 23 14N089 ASCD Hold (Speed Control Relay) 24 14N089 Bulb Check 25 14N089 Headlamp, RH 26 14N089 INHIBIT (Throttle Position [TP] Switch) 27 9P704 FUEL PUMP 28 14N089 HORN
check 11, 16, 17, 22, 26, 27