BMW 3 Series Cabriolet Alternator replacement Cost
2007–2010 · Engine, Fuel & Emissions system
Typical range
$571–$6.3k
Parts + labour
Labour hours
1.5–4.5h
At a typical garage
The alternator charges the battery and powers the electrical system while the engine is running. Warning signs include a battery warning light, dimming headlights, or a car that won't start after short trips. BMW 3 Series Cabriolet alternator replacement typically costs $571–$6335 at an independent garage.
Typical parts included
- Alternator
- Alternator voltage regulator
What affects the price
- OEM vs remanufactured alternator unit
- Output amperage (higher on models with heavy electrical loads)
- Accessibility in the engine bay—some require partial disassembly
Common questions
How long does this repair take?
Alternator replacement on a BMW 3 Series Cabriolet typically takes 1.5–4.5 hours at a garage.
How often does this need to be done?
For a BMW 3 Series Cabriolet, this is typically needed typically every 80,000–150,000 miles; replacement is usually on failure rather than a set schedule.
Other engine, fuel & emissions system repairs on the BMW 3 Series Cabriolet
- ABS hydraulic unit replacement$446–$829
- ABS sensor replacement$184–$341
- ABS system bleeding$147–$273
- AC compressor clutch replacement$368–$683
- AC compressor replacement$394–$731
Alternator replacement cost on similar cars
- RENAULT Megane Cabriolet$315–$585
- VOLKSWAGEN Beetle Cabrio$315–$585
- MERCEDES BENZ E-Klasse Cabriolet and predecessors$315–$585
- AUDI A5 Cabriolet$315–$585
- OPEL Astra Cabriolet$315–$585
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