Poor Fm Radio Reception (GROUP 20, NO. 12-23)

POOR FM RADIO RECEPTION

TECHNICAL SERVICE BULLETIN

20 12 23 2029899/1 June 18, 2012.

Model(s)	Year	VIN Range	Vehicle-Specific Equipment
A6	2012	000001 - 045000	Not Applicable
A7		000001 - 045000

CONDITION

Customer states there are background noises on the radio in FM when the engine is running, or FM radio reception is poor.

This bulletin does not apply if radio reception is also poor when the engine is not running, or if the fuel pump is not active.

TECHNICAL BACKGROUND

High frequency oscillations can be generated in the signals between the fuel pump control unit and the pump itself. This leads to radio interference in the FM frequency range, mainly when there is a weak radio signal.

The complaint only occurs when the engine is running and stops when the fuel pump is switched off.

PRODUCTION SOLUTION

Optimized fuel pump control unit.

SERVICE

1. Move the vehicle outdoors, and when the engine is running check whether the FM radio reception improves by removing the fuse of the control unit for fuel pump J538. The fuse is a 25A fuse, located in the second position in fuse block ST3 (Figure 1).
2. If the radio reception improves, replace the fuel pump control unit. If the radio reception does not improve, continue with standard diagnosis as this bulletin no longer applies.

WARRANTY

Claim Type:	Use applicable claim type. If vehicle is outside any warranty, this Technical Service Bulletin is informational only.
Service Number:	2070
Damage Code:	0010
Labor Operations:	Remove / Reinstall Wheel and Tire	4405 1900	20 TU
	Replace Fuel Pump Control Unit	2070 1950	160 TU
Diagnostic Time:	GFF - Checking and clearing fault codes included in existing labor operations	No allowance	0 TU
	Road test prior to service procedure	No allowance	0 TU
	Road test after service procedure	No allowance	0 TU
	Technical diagnosis at dealer's discretion (Refer to Section 2.2.1.2 and Audi Warranty Online for DADP allowance details)
Claim Comment:	As per TSB #2029899/1

All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures Manual.  Claims are subject to review or audit by Audi Warranty.

ADDITIONAL INFORMATION

All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.