The second-generation BMW X5 with the M57 twin-turbo diesel remains a compelling large luxury SUV. With 286 hp and 580 Nm of torque from its 3.0-litre inline-six, it offers strong performance and respectable fuel economy for its size. The E70 generation refined the X5 formula considerably over the E53, with a more capable chassis and better road manners.· more· less
Strong and durable M57 diesel engineGood towing and fuel economy balance
Complex emissions system failuresAir suspension expensive when it fails
Buy if: You want a capable diesel SUV with strong towing performance and can budget for BMW-level maintenance on a 12-15 year old vehicle.
Avoid if: You mostly drive short urban trips (DPF and emissions system problems) or cannot absorb surprise repair bills of several thousand euros.
Twin-turbo system can develop oil leaks, worn bearings, or actuator faults, especially above 150,000 km · more· less
The M57 uses a sequential twin-turbo arrangement with a smaller high-pressure turbo and a larger low-pressure turbo. Over time, turbo oil lines can leak, the wastegate actuator can stick, or bearings can wear. Symptoms include loss of power, excessive exhaust smoke, or a high-pitched whine. A single turbo replacement with genuine BMW parts costs around €2,000-3,500, while replacing both turbos plus the installation kit can exceed €5,000-6,000 at a dealer. Independent specialists often charge 30-40% less. Back pressure from a clogged DPF accelerates turbo wear, so maintaining the exhaust system is important. Many M57 engines reach 200,000+ km on original turbos with regular servicing.
DPF clogging and failure
€1,500 - 3,0002 of 10
Diesel particulate filter clogs from short-trip driving, causing limp mode and potential turbo damage · more· less
The DPF traps soot and burns it off during regeneration cycles, which require sustained highway driving. Vehicles used predominantly for short urban trips often fail to complete regeneration, causing soot accumulation. A severely clogged DPF triggers limp mode and can damage the turbos through excessive back pressure. Professional cleaning costs €300-500 and can restore function if the filter is not damaged. Full replacement with a genuine DPF runs €1,500-3,000 including labor. Parts availability can be limited and lead times long. Regular long-distance driving significantly reduces the risk. The DPF warning light should never be ignored.
EGR valve and cooler failure
€800 - 2,5003 of 10
EGR valve clogs with carbon deposits, and the EGR cooler can develop internal leaks creating a fire risk · more· less
The Exhaust Gas Recirculation valve collects carbon deposits over time, restricting airflow and reducing performance. Symptoms include rough idle, poor throttle response, and increased emissions. EGR valve replacement costs €300-600 for parts plus 2-4 hours labor. More seriously, BMW issued a recall for EGR coolers on certain diesel models due to internal coolant leaks. When the cooler leaks, coolant mixes with diesel soot, and high EGR temperatures can cause the intake manifold to melt or smolder, creating a fire risk. EGR cooler replacement with intake manifold inspection runs €1,500-2,500. Verify with BMW using the VIN whether any EGR-related recalls apply to the specific vehicle.
Air suspension compressor and spring failure
€1,200 - 3,5004 of 10
Rear air springs develop leaks, overworking the compressor until it fails as well · more· less
The optional rear air suspension (standard on many European models) uses air springs that perish over time. A small air leak forces the compressor to run frequently, eventually burning it out. A single air spring replacement costs €400-600. The compressor costs €600-900 to replace. If both springs and the compressor fail together (common when a leak is ignored), the combined repair reaches €1,200-2,000 at an independent shop or €2,500-3,500 at a BMW dealer. Conversion to conventional springs is possible for €800-1,200 but removes the self-leveling function. Check ride height at all four corners and listen for the compressor running after the engine is switched off.
xDrive transfer case actuator wear
€800 - 3,5005 of 10
Transfer case actuator motor fails from worn gears, causing xDrive warning messages and potential drivetrain shudder · more· less
The xDrive system uses a transfer case with an electric actuator motor that distributes torque between front and rear axles. The actuator motor can fail due to internal gear wear, triggering xDrive warning messages and drivetrain shudder, especially during turns. Dealers often quote full transfer case replacement (€3,000-4,500), but the actuator motor can usually be replaced separately for €800-1,200 at a specialist. Internal transfer case failure (from mismatched tires or neglected fluid changes) is more expensive. Regular transfer case fluid changes every 60,000 km help prevent issues. Mismatched tire sizes across axles accelerate wear significantly.
Oil filter housing and oil cooler gasket leaks
€400 - 1,2006 of 10
Gaskets between the oil filter housing, oil cooler, and engine block degrade, causing persistent oil leaks · more· less
The oil filter housing gasket (OFHG) and oil cooler gasket are well-documented weak points on the M57 engine. These rubber gaskets harden and shrink with age and heat cycling, allowing oil to seep from the housing. Oil may drip onto hot exhaust components, creating a burning smell and smoke. The OFHG replacement costs €200-400 at an independent shop. The oil cooler gasket is more involved, running €400-800 including labor. Both gaskets are commonly replaced together for €600-1,200. On the diesel 35d, the valve cover gasket can also fail at the intake inlet, allowing boost pressure into the crankcase and blowing oil past every seal. This is a more involved repair requiring intake removal.
SCR/AdBlue system malfunction
€600 - 2,0007 of 10
NOx sensors, AdBlue injector, or SCR tank temperature sensor fail, triggering countdown to no-start · more· less
The selective catalytic reduction system uses AdBlue (urea solution) to reduce NOx emissions. The system monitors fluid quality and level, and if a fault is detected, it displays a warning with a countdown of remaining starts before the engine will no longer start. Common failure points include NOx sensors (€250-500 each, two fitted), the AdBlue injector (€300-500), and the SCR tank temperature sensor, which cannot be replaced separately and requires full tank replacement (€1,000-1,500). Independent diagnosis is important, as dealers may quote full system replacement when only a sensor has failed.
Swirl flap breakage (intake manifold)
€500 - 5,0008 of 10
Intake manifold swirl flaps can fracture and fall into the engine, causing catastrophic damage in worst cases · more· less
The M57 engine uses swirl flaps in the intake manifold to improve low-load combustion. These flaps can fracture at the shaft, with debris potentially entering the cylinders. If fragments reach the combustion chamber, catastrophic piston and valve damage can result, requiring engine rebuild or replacement. BMW revised the design from late 2008, reducing the risk on later E70 models. Preventive swirl flap delete kits (aluminum blanks) cost €100-200 and are widely recommended by specialists as a precaution. If the flaps have already fractured without engine ingestion, manifold replacement costs €500-1,200. Full engine damage from ingested flap debris can exceed €5,000.
Glow plug and control module failure
€400 - 1,2009 of 10
Glow plugs seize in the cylinder head or the control module fails, causing hard cold starts and rough running · more· less
Diesel glow plugs heat the combustion chambers for cold starting. On the M57, glow plugs can seize into the cylinder head if not replaced proactively, making extraction much more difficult and expensive. Symptoms of failure include hard starting in cold weather, rough idle for the first few minutes, and white exhaust smoke. Replacement of all six glow plugs plus the control module costs €400-600 at an independent shop or €800-1,200 at a dealer. The glow plug service interval is approximately every 120,000 km. Seized glow plugs may require specialist extraction tools or drilling, adding significantly to the cost.
Rear tail light water ingress
€100 - 40010 of 10
Butyl tape seals on tailgate-mounted lights fail, allowing water to corrode the circuit boards · more· less
The rear lights mounted on the tailgate use butyl tape seals that commonly fail, allowing water to enter the housing. Water damages the small circuit boards and corrodes the LED connectors, causing lights to flicker or stop working. BMW addressed this with an updated rubber gasket seal. The updated gasket costs approximately €30-50 per light. If the circuit board is already corroded, the complete light unit needs replacement at €150-300 per side. This is a very common issue on E70 models of all engine variants and should be checked on every pre-purchase inspection.
Durable engine, but complex systems demand proactive maintenance
The M57 twin-turbo diesel is widely regarded as one of BMW's most robust engines, with many examples exceeding 300,000 km. However, the E70 platform surrounds this engine with complex systems — air suspension, xDrive transfer case, twin-turbo plumbing, and SCR emissions equipment — that each carry their own maintenance burden. Ownership costs depend heavily on how well these ancillary systems have been maintained by previous owners. A well-documented service history and specialist pre-purchase inspection are essential.
Service history
Complete BMW dealer or specialist records essential. Verify oil change intervals and all fluid changes including transfer case, differential, and transmission.
Tires
Check tread depth, age (date codes), and critically that all four tires are the same size and specification. Mismatched tires damage the xDrive system.
Cold start
Must start the engine completely cold. Listen for turbo whine, excessive smoke, and rough running. Glow plug light should illuminate and extinguish before starting.
Test drive
Drive for at least 30 minutes including highway speeds. Monitor for warning messages, check turbo response, and feel for drivetrain vibrations or shudder during turns.
Specific for this vehicle
Check ride height and air suspension operation
Park on level ground and check all four corners sit at equal height. Listen for the compressor running after engine off. Bounce each corner and listen for air leaks.
Inspect for oil leaks around the engine
Look underneath for fresh oil around the oil filter housing, oil cooler, valve cover, and turbo oil lines. Burning oil smell indicates active leaks onto exhaust.
Check for DPF and AdBlue warnings
Look for DPF, SCR, or exhaust fluid warnings on the dashboard. Ask about the vehicle's typical driving pattern — short-trip-only cars have higher DPF risk.
+ 4 more checksShow less
Test xDrive system for warnings and shudder
Make full-lock turns in both directions on a dry surface. Any shuddering, grinding, or xDrive fault messages indicate transfer case issues.
Verify EGR cooler recall status
Contact BMW with the VIN to confirm whether the EGR cooler recall applies and has been completed. This is a fire safety issue.
Inspect rear tail lights for water ingress
Open the tailgate and inspect inside the rear light housings for condensation, water marks, or corroded connectors.
Check turbo boost response
During the test drive, perform a firm acceleration from low speed. Hesitation, smoke, or lack of power may indicate turbo actuator or boost leak issues.
Recalls and Technical Service Bulletins
EGR cooler internal leak and fire risk (certain diesel models)Critical - verify completed
Front driveshaft universal joint failure (2011-2013 production)Verify completed
Contact BMW with the VIN to verify all open recalls have been completed. The EGR cooler recall is particularly important as it relates to fire safety. The Takata airbag recall is critical and must be verified on every E70.
Warranty Status
Factory warranty (2 years)Expired on all E70 models
Rust perforation warranty (12 years)Expired or expiring on most E70 models
Extended warranty availabilityLimited availability through BMW dealers for younger E70 models
All BMW X5 E70 models are well outside their original 2-year factory warranty. The 12-year rust perforation warranty has expired on 2007-2013 models. Extended warranty options from BMW may still be available for the youngest models (2012-2013) through BMW dealers, but coverage is typically limited and expensive for vehicles of this age.
Sources: Research draws on model-specific owner forums and owner communities, recall information from official authorities, German automotive press, and multiple workshop cost references cross-checked against each other.
This report is for informational purposes only and does not constitute professional advice. Estimates may be inaccurate. Always have a qualified specialist inspect the vehicle before purchase. We accept no liability for decisions made based on this information.
