"Is the 3 Serisi 325d reliable, and what should you check?"
When buying a used BMW 3 Series 325d 2010 (E90/E91/E92/E93 facelift), the most frequently mentioned issue is EGR valve/EGR cooler problems. Also, injector/common rail wear and (rare) timing chain issues are commonly reported.
Engines available in this year
Engine varies by trim; verify the engine code on the listing.
N57D30A
325d · 325d (204 bg)
M57D30TU2
turbo petrol · 325d · 325d (197 bg)
Known issues and risks
Listed from most frequently reported, each with its source.
EGR valve/EGR cooler problems
Often reported
In the Series 3's B47 2.0 diesel engine, recurring failures of the EGR valve or EGR cooler are reported; they can cause power loss, uneven throttle response, and the check engine light to come on.
Exhaust Emissions
Injector/common rail wear and (rare) timing chain issues
Often reported
Reports on 2.0 units indicate that with high mileage or poor fuel maintenance, injectors or the common rail system can develop issues manifesting as power loss, smoke, and rough running; timing chain issues have also been seen (rarely) in the BMW diesel family.
Fuel System
Turbo problems (actuator/wastegate) and oil leaks
Often reported
Some reports for the G20 3 Series mention abnormal turbo noises (e.g., wastegate/actuator rattle), boost loss, and in worse cases, oil leaks from the turbo area resulting in blue/black smoke or performance drop.
What should I look for when buying a BMW 3 Series 325d?+
When buying a 2010 325d, check the service history, test drive, and look for engine/transmission warnings. Most commonly reported issues: EGR valve/EGR cooler problems; injector/common rail wear and (rare) timing chain issues; turbo problems (actuator/wastegate) and oil leaks.
What are the common problems of BMW 3 Series 325d?+
Most frequently reported issues: EGR valve/EGR cooler problems; injector/common rail wear and (rare) timing chain issues; turbo problems (actuator/wastegate) and oil leaks.
Is the BMW 3 Series 325d reliable?+
Instead of a simple yes/no, it's better to weigh the proven pros and cons together. This page lists 3 verified findings.
How does Carbeak collect data?+
The cards on this page are derived from the Difetti fault database; brand, fuel, engine, and generation compatibility between the source vehicle and target vehicle are verified. Topics with insufficient evidence are not shown.