AUDI A5 Relay replacement Cost
2007–2011 · Engine, Fuel & Emissions system
Typical range
$133–$628
Parts + labour
Labour hours
0.2–1h
At a typical garage
Solenoids, relays and fuses are the switching components of the electrical system; a failed relay can prevent a system from operating while a starter solenoid failure prevents the engine from cranking. Diagnosis to pinpoint the exact faulty component is often quicker than the replacement itself. AUDI A5 solenoid, relay or fuse repair costs $133–$628.
Warning signs you need this repair
- A system (fuel pump, cooling fan, starter) completely failing to operate
- Clicking sound when attempting to start (starter solenoid failure)
- Intermittent electrical fault that clears when tapping a component
- Blown fuse that returns repeatedly (indicates an underlying short)
- Battery voltage dropping — voltage regulator failure overcharges or undercharges
Typical parts included
- Relay box
- Relay
What affects the price
- Whether the fault is a single component or part of a broader electrical issue
- Starter solenoid accessibility — sometimes easier via the top, sometimes the underside
- Fuse box access and component identification (requires wiring diagram)
Common questions
How much does relay replacement cost on a AUDI A5?
Relay replacement on a AUDI A5 (2007–2011) typically costs between $133 and $628 including parts and labour at an independent garage.
What parts are needed for relay replacement on a AUDI A5?
Common parts for this repair include: Relay box, Relay.
How long does relay replacement take on a AUDI A5?
Relay replacement on a AUDI A5 typically takes 0.2–1 hours of labour at a garage.
How often does relay replacement need to be done?
For a AUDI A5, relay replacement is typically needed as needed; relays and fuses fail unpredictably; voltage regulators typically at 80,000–130,000 miles.
Other engine, fuel & emissions system repairs on the AUDI A5
- ABS hydraulic unit replacement$425–$765
- ABS sensor replacement$175–$315
- ABS system bleeding$140–$252
- AC compressor clutch replacement$350–$630
- AC compressor replacement$375–$675
Relay replacement cost on similar cars
- BMW 3 Series Coupe$60–$108
- MERCEDES BENZ E-Klasse Coupe and predecessors$60–$108
- SAAB 9-3 Coupe$60–$108
- PORSCHE 911 Carrera 4$66–$119
- FORD Mustang$59–$109
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