2011 BMW 335d
2011 BMW 335d
Overview
The 2011 BMW 335d, a potent diesel variant of the popular 3 Series, offers a compelling blend of performance and fuel efficiency. Powered by a robust 3.0-liter twin-turbocharged inline-six diesel engine, it delivers impressive torque and acceleration. While generally well-regarded for its driving dynamics and build quality, like any vehicle, it has specific areas that have seen more attention from owners regarding reliability. This analysis focuses on documented common issues beyond routine maintenance, providing insights into potential concerns for prospective buyers or current owners.
Engine
3.0L Twin-Turbocharged Inline-6 Diesel (N57D30)
Diesel Particulate Filter (DPF) Regeneration Issues
- Symptoms: Check engine light, reduced engine power, increased fuel consumption, rough idling.
- Solution: Forced regeneration, DPF cleaning, or replacement.
- Cost: $500 - $2000
EGR Cooler Leaks
- Symptoms: Coolant loss, white smoke from exhaust, overheating, coolant smell in the cabin.
- Solution: Replacement of the EGR cooler.
- Cost: $600 - $1200
Turbocharger Issues
- Symptoms: Loss of power, whistling noises, black smoke from exhaust, boost pressure issues.
- Solution: Repair or replacement of turbocharger(s).
- Cost: $1500 - $3000
Transmission
6-Speed Automatic (6HP28)
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Suspension
Standard Chassis
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Electrical
Standard Electrical System
Water Pump Failure
- Symptoms: Overheating, coolant leaks, check engine light.
- Solution: Replacement of the electric water pump and thermostat.
- Cost: $500 - $900
Glow Plug Module Failure
- Symptoms: Difficulty starting in cold weather, check engine light, rough idle.
- Solution: Replacement of the glow plug control module and/or glow plugs.
- Cost: $300 - $700
Exterior
Standard Exterior
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Interior
Standard Interior
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Summary Verdict
The 2011 BMW 335d is a capable and enjoyable vehicle, particularly for those seeking diesel torque and efficiency. The primary areas of concern revolve around the diesel-specific emissions system (DPF, EGR) and the electric water pump. These components can be costly to repair or replace if they fail. However, the engine and transmission are generally robust when properly maintained. Addressing potential issues proactively, such as ensuring regular DPF regeneration cycles and monitoring coolant levels, can help mitigate some of these risks. Overall, with diligent maintenance and awareness of common diesel-related issues, the 335d can remain a reliable performer.