The E90 328i with the N52 engine is generally solid, but suffers from classic BMW cooling system fragility, oil consumption issues as mileage climbs, and occasional water pump failures. The automatic transmission can develop leak and mount issues.
Water Pump and Thermostat Failure
Common · high severity
Typical onset: 60,000-100,000 mi
Symptoms: coolant leak from weep hole on pump, overheating warnings on dash, steam from engine bay, fluctuating temp gauge
Fix: Replace water pump (electric on N52), thermostat, and expansion tank as a package. 3-4 labor hours. Do NOT skip the expansion tank—it becomes brittle.
Estimated cost: $800-1,400
Oil Consumption / Valve Stem Seals
Common · medium severity
Typical onset: 80,000-150,000 mi
Symptoms: burning 1+ quart every 1,000 miles, blue smoke on cold start, low oil warnings between changes, carbon buildup on intake valves
Fix: Valve stem seals harden and leak oil into combustion chambers. Seal replacement requires cylinder head removal—12-16 hours labor. Some owners opt for top-end rebuild or short block if rings are also worn.
Estimated cost: $2,500-4,500
Transmission Oil Cooler Line Leaks
Common · medium severity
Typical onset: 70,000-120,000 mi
Symptoms: transmission fluid pooling under car, burnt smell, slipping or harsh shifts when fluid is low, pink fluid on driveway
Fix: Plastic cooler lines crack at fittings. Replace cooler lines and top off transmission fluid. 2-3 hours labor. Sometimes cooler itself also needs replacement.
Estimated cost: $600-1,200
Transmission and Engine Mounts
Common · low severity
Typical onset: 80,000-120,000 mi
Symptoms: clunk when shifting into drive or reverse, vibration at idle, excessive engine movement visible when revving
Fix: Hydraulic mounts fail and leak fluid. Replace transmission mount and suspect engine mounts. 2-3 hours labor for transmission mount, add 1-2 hours per engine mount.
Estimated cost: $400-900
VANOS Solenoid and Eccentric Shaft Sensor Failures
Occasional · medium severity
Typical onset: 90,000-140,000 mi
Symptoms: rough idle, check engine light with P0015/P0016 codes, loss of power, rattling on cold start
Fix: VANOS solenoids clog or fail; eccentric shaft sensor for valvetronic can also throw codes. Clean or replace solenoids (1.5 hours), replace sensor if needed (1 hour). Often coincides with oil sludge.
Estimated cost: $400-800
Cooling System Hoses and Expansion Tank Cracks
Common · medium severity
Typical onset: 70,000-110,000 mi
Symptoms: coolant smell in cabin or engine bay, visible cracks in plastic tank, low coolant warnings, hissing sound when engine is hot
Fix: Plastic components age poorly. Replace expansion tank, upper/lower hoses, and any brittle connectors as preventive maintenance. 2-3 hours labor if doing all at once.
Estimated cost: $500-900
Fuel Injector Failures
Occasional · medium severity
Typical onset: 100,000-150,000 mi
Symptoms: rough running, misfires on specific cylinders, fuel smell, check engine light with misfire codes
Fix: Direct injection injectors can clog or fail electrically. Replace faulty injectors—1.5-2 hours labor. Often see carbon buildup on intake valves at same time; consider walnut blasting (add 3-4 hours).
Estimated cost: $800-1,800
Owner tips
Use BMW-spec coolant and change it every 4 years—this platform's cooling system is unforgiving of neglect.
Check oil level every other fill-up after 80k miles; top off as needed to avoid starving the top end.
Inspect transmission cooler lines during every oil change—catch leaks early before you damage the transmission.
Avoid cheap oil filters and extended drain intervals; N52 VANOS system needs clean oil to survive.
Solid platform if cooling system and oil consumption are addressed proactively—budget $2k-3k for deferred maintenance on any high-mileage example, but a well-maintained one can hit 200k.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE · 24V513000
2024-07-03
BMW of North America, LLC (BMW) is recalling certain 2006-2011 3 Series Sedan (324i, 325i, 325xi, 328i, 328xi, 330i, 330xi, 335i, 335xi), 2006-2012 3 Series Sportswagon (325xi, 328i, 328xi), and 2009-2011 3 Series Sedan (335d) vehicles. The original steering wheel may have been replaced with a sport or M-sport steering wheel equipped with an inflator that can explode during deployment.
Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.
Remedy: Dealers will inspect and replace the driver's air bag module as necessary, free of charge. Owner notification letters were mailed August 30, 2024. Owners may contact BMW customer service at 1-800-525-7417.
AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE · 20V017000
2020-01-15 · EA15001
BMW of North America, LLC (BMW) is recalling certain 2008-2013 128i and 135i Convertibles, 128i, 135i, and M Coupes, 2007-2010 X3 30si and X3 xDrive30i, 2013-2015 X1 sDrive28i, X1 xDrive28i and X1 xDrive35i, 2007-2013 328i, 328i xDrive, 335i, 335is, 335i xDrive and M3 Coupes, 2006-2011 328i, 328xi, 328i xDrive, 325i, 325xi, 330i, 330xi, 335i, 335xi, 335i
xDrive and M3, 2009-2011 335D, 2006-2012 325xi, 328i, 328xi and 328i xDrive, 2010-2011 X6 ActiveHybrid, 2007-2013 328i, 335i, 335is, M3 Coupes, X5 30si, X5 xDrive30i, X5 xDrive35i, X5 48i, X5 xDrive48i, X5 xDrive50i and X5 M, 2009-2013 X5 xDrive35d and 2008-2014 X6 xDrive35i, X6 xDrive50i and X6M vehicles equipped with non-desiccated driver frontal air bag inflators containing phase stabilized ammonium nitrate (PSAN) that were used as interim remedy parts for previous Takata recalls. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.
Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
Remedy: BMW will notify owners, and dealers will replace the driver air bag. On X5 and X6 vehicles, only the inflator will be replaced. All repairs will be performed free of charge. The recall began March 11, 2020. Owners may contact BMW customer service at 1-800-525-7417.
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV) · 17V683000
2017-10-30
BMW of North America, LLC (BMW) is recalling certain 2008-2011 128i and 2007-2011 328i, 328xi, 328i xDrive, 525i, 525xi, 528i, 528xi, 530i, 530xi, X3 3.0si, X3 xDrive30i, X5 xDrive30i, Z4 3.0i, Z4 3.0si and Z4 sDrive30i vehicles. The heater for the positive crankcase ventilation (PCV) valve may short circuit.
Consequence: An electrical short can cause the parts within the PCV valve to melt, increasing the risk of a fire, even when the vehicle is not in use.
Remedy: BMW will notify owners, and dealers will replace the PCV valve heater, free of charge. Interim letters were mailed on November 27, 2017. Owners will receive a second notification by the end of October 2018. Owners may contact BMW customer service at 1-800-525-7417.
ELECTRICAL SYSTEM:WIRING · 17V676000
2017-10-25
BMW of North America, LLC (BMW) is recalling certain 2006-2011 323i, 325i, 325xi, 328i, 328xi, 330i, 330xi, 335i, 335xi and M3, 2007-2011 328i xDrive, 335i xDrive and 335is and 2009-2011 335d vehicles. The wiring and electrical connectors for the system that controls air flow for the heating and air conditioning system may overheat.
Consequence: Wiring that overheats could cause the electrical connectors to melt, and increase the risk of a fire, even when the vehicle is unattended.
Remedy: BMW will notify owners, and dealers will replace the wiring and electrical connectors, free of charge. Interim letters were mailed on November 27, 2017. Owners will receive a second notice when the remedy becomes available. Owners may contact BMW customer service at 1-800-525-7417.
ENGINE AND ENGINE COOLING:ENGINE · 14V176000
2014-04-10
BMW of North America, LLC (BMW) is recalling certain model year 2010-2011 128i Coupe, 128i Convertible, 328i Sedan, 328i xDrive Sedan, 328i Coupe, 328i Convertible, 328i Sports Wagon and Z4 sDrive 30i, 2011-2012 135i Coupe, 135i Convertible, 335i Sedan, X5 xDrive 35i, and X6 xDrive 35i, 2011 335i xDrive Sedan, 335i Coupe, 335i Convertible, 528i Sedan, 535i Sedan, 535i xDrive Sedan, X3 xDrive 28i, and X3 xDrive 35i, 2010 X3 xDrive 30i, and X5 xDrive 30i, 2012 640i Coupe, and 640i Convertible and 2010-2012 535i Gran Turismo vehicles. In the affected vehicles, the bolts that secure the housing for the variable camshaft timing adjustment (VANOS) unit can loosen over time and may possibly break.
Consequence: If the bolts loosen or break the engine may have reduced power or stall. An engine stall increases the risk of a crash.
Remedy: BMW will notify owners, and dealers will replace the four VANOS housing bolts for both VANOS units (intake and exhaust), free of charge. In addition, owners of approximately 170,172 model year 2010-2012 BMW vehicles equipped with inline 6 cylinder engines not covered by this recall, will receive an extended warranty to address this condition. The recall began on September 24, 2014. Owners may contact BMW at 1-800-525-7417.
ELECTRICAL SYSTEM · 13V044000
2013-02-07
BMW is recalling certain model year 2008-2012 1-Series coupes and convertibles manufactured December 2007 through September 2011; and 2007-2011 3-Series coupes and convertibles manufactured March 2007 through October 2011; 2007-2011 3-Series sedans manufactured March 2007 through October 2011; 2007-2011 3-Series sports wagons manufactured March 2007 through June 2011; and 2009-2011 Z4 vehicles manufactured March 2009 through June 2011. In February 2013, BMW recalled 504,545 vehicles. In July 2013, BMW informed the agency that it was adding 1-Series, 3-Series, and Z4 vehicles, representing an additional 12,094 vehicles. The total number of vehicles being recalled is now 516,791. The connector for the positive battery cable connector and the corresponding terminal on the fuse box may degrade over time. Over time, the high current flow and heat from electrical resistance may lead to a breakage of the connection, and a loss of electrical power to the vehicle.
Consequence: If there is a loss of electrical power to the vehicle, the vehicle may unexpectedly stall, increasing the risk of a crash.
Remedy: BMW will notify owners, and dealers will replace the positive battery cable connector and secure it with an improved method, free of charge. The recall began on March 13, 2013. Owners may call BMW at 1-800-525-7417 or email BMW at [email protected].
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