YearToAvoid

2005 Audi S4 Electrical System Problems

NHTSA has 37 owner complaints about electrical problems in the 2005 Audi S4, 86% of all 43 complaints for this model year. That is the highest electrical complaint count among 16 S4 model years. These complaints report 1 crash. Median mileage at failure: 56,000 miles.

Electrical System complaints
37
86% of 43
Crashes reported
1
Fires reported
0
Injuries reported
0
Median mileage
56,000 mi
Related recalls
0

When 2005 Audi S4 electrical complaints were filed

First complaint Oct 15, 2006, latest Apr 26, 2018.

2005 Audi S4 electrical system complaints: complaints filed per month3Oct 2006Jan 2009Apr 2010Sep 2010Mar 2011Nov 2012May 2014Apr 2016
37 complaints filed with NHTSA from Oct 2006 to Apr 2018; peak Jan 2010 (3).

Electrical System recalls for the 2005 Audi S4

No safety recalls on record for this model year.

Electrical System complaints by S4 model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 200537 (86%)
  2. 200622 (73%)
  3. 20072 (15%)
  4. 20080 (0%)
  5. 20090 (0%)
  6. 20107 (12%)
  7. 20112 (8%)
  8. 20123 (14%)
  9. 20132 (6%)
  10. 20141 (6%)
  11. 20150 (0%)
  12. 20180 (0%)
  13. 20190 (0%)
  14. 202014 (88%)
  15. 20211 (50%)
  16. 20221 (100%)

Frequently asked questions

Does the 2005 Audi S4 have electrical problems?
NHTSA has 37 owner complaints about the electrical in the 2005 Audi S4, 86% of all complaints for this model year, including 1 that report a crash. Median mileage at failure is 56,000 miles.
Which Audi S4 year has the most electrical complaints?
The 2005 Audi S4 has the most electrical complaints (37), compared with 37 for the 2005.
Is there a electrical recall for the 2005 Audi S4?
No NHTSA recall campaign for the 2005 Audi S4 is classified under electrical system. Complaints alone do not trigger a recall; check the full recall list and your VIN.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.