Most common 2008 BMW 550i problems
Share of the 32 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
BMW 550i complaints by model year
Best 550i years: 2016, 2014, 2015. Years to avoid: 2011, 2012, 2007, 2008. Compare all years →
2008 BMW 550i recalls (2)
Exterior lighting › Tail lights
BMW is recalling certain model year 2008 through 2010 528i, 535i, 550i, and M5 passenger cars manufactured from March 1, 2007, through December 31, 2009. Over time, increased resistance at the taillight electrical contact points may cause damage to the ground terminal and housing of the connector resulting in an intermittent or…
Remedy: BMW will notify owners, and dealers will replace the rear lamp bulb carriers free of charge. Owners may contact BMW customer relations at 1-800-525-7417 or email BMW at CustomerRelations@bmwusa.com.
Engine and engine cooling
On certain vehicles equipped with v8 engines, in conditions of below freezing temperatures combined with low humidity, it is possible for electrostatic discharge to occur at the fuel rails. If this were to occur, the engine electronic control unit (ECU) could be affected so that engine stalling could result.
Remedy: Dealers will attach two ground cables in the engine compartment free of charge. The recall began on October 29, 2007. Owners May contact BMW at 1-800-831-1117.
What 2008 BMW 550i owners say
Electrical system
Vehicle abruptly shut off while reversing out of my driveway. Vehicle restarted after a long crank and appeared to enter a reduced power mode/limp mode with a transmission fault that locked the transmission in 4th gear. Reading OBD2 codes revealed a code for the crankshaft position sensor. Inspection of the 3 terminal sensor revealed 2 of the terminal contacts on the sensor to be shorted out with melted plastic on both the sensor and the wiring connector plug. Shorted wire could be a result of a leaking coolant passage at rear of engine within bellhousing where sensor is located. Coolant intrusion into sensor connector resulted in electrical short and melted connections.
I was driving and came to a stop and noticed smoke and an odd smell coming from under the hood. The heater control valve and the wire connector started to smolder and melt the plastic. If it wasn't for me disconnecting the connector wire to the heater control valve, it would have definitely would have caught on fire.There was no warning other than the smoke and smell coming from the car. I am in the process of the car getting inspected from a bmw service center
Lights
The daytime running lights aka Angel Eyes wiring is sub-standard. The plastic coating on the wires for the daytime running lights/Angel Eyes has melted away exposing bare wiring that has fused causing the lights to malfunction and not work. I believe the manufacturer is aware of this sub-standard issue and needs to provide a suitable fix or replacement for the sub-standard wiring of their product.
The wiring in my headlight assembly is crumbling and the headlight is shorting out. The coating on the wiring is trash. I own a 08 Bmw550i. BMW should be ashamed. Thanks [redacted]
Engine & cooling
The contact owns a 2008 BMW.The contact stated that he was getting ready to drive the vehicle, however when he started the vehicle, the ABS and check engine lights illuminated.The contact stated that he noticed the vehicle was overheating and turned the vehicle off.The contact heard an unusual sound which came from under the hood.The contact inspected and noticed that the coolant reservoir lid had detached and dented the hood due to the vehicle overheating.The vehicle was not diagnosed or repaired by an independent mechanic or dealer.The manufacturer was made aware of the failure and provided no assistance.The failure mileage was approximately 65,000.
Vehicle abruptly shut off while reversing out of my driveway. Vehicle restarted after a long crank and appeared to enter a reduced power mode/limp mode with a transmission fault that locked the transmission in 4th gear. Reading OBD2 codes revealed a code for the crankshaft position sensor. Inspection of the 3 terminal sensor revealed 2 of the terminal contacts on the sensor to be shorted out with melted plastic on both the sensor and the wiring connector plug. Shorted wire could be a result of a leaking coolant passage at rear of engine within bellhousing where sensor is located. Coolant intrusion into sensor connector resulted in electrical short and melted connections.
2008 BMW 550i engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 4.8L 8-cyl | 6-speed manual | RWD | 15 / 22 / 18 |
| 4.8L 8-cyl | 6-speed automatic | RWD | 15 / 23 / 18 |
EPA ratings. Class: Midsize car.
Frequently asked questions
Is the 2008 BMW 550i a good car?
Based on 32 owner complaints filed with NHTSA, the 2008 550i rates use caution: 1.8× as many complaints as a typical year of the 550i at the same age. It is one of the 550i years we suggest avoiding. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2008 BMW 550i?
The electrical system — 9 complaints, 28% of all complaints for this model year. Next are the lights (7) and engine & cooling (6).
How many recalls does the 2008 BMW 550i have?
There are 2 recalls for the 2008 BMW 550i, the most recent from September 11, 2013 (tail lights). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the BMW 550i?
The best years by complaints, compared at the same age, are 2016, 2014 and 2015. Years to avoid or approach with caution: 2011, 2012, 2007 and 2008. See the full BMW 550i years comparison.
At what mileage do 2008 BMW 550i problems happen?
The median mileage reported in complaints is about 78,000 miles; 29% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.