P0524 on BMW: How to Diagnose & Fix
Engine Oil Pressure Too Low
5 BMW models · 5 documented issues · 2 critical · $250-$3,000 repair
P0524 on BMW by model: symptoms, diagnosis and fix
The B48 2.0L turbo engine in X2 models (2018-2023) has a plastic oil filter housing that cracks from heat cycling, typically around 55,000-65,000 miles. The plastic housing becomes brittle over time and develops cracks that allow oil and coolant to mix, potentially causing catastrophic engine damage if not caught early. This is a design flaw - the plastic housing is mounted near the hot turbo and exhaust manifold where temperatures cause premature degradation. When the housing cracks, oil and coolant can cross-contaminate, leading to milky oil, overheating, and engine failure. Aftermarket aluminum upgrade housings ($250-350) are recommended over OEM plastic replacement to permanently solve the issue.
Common Symptoms
- Oil leak visible around oil filter housing area
- Coolant and oil mixing (milky residue on dipstick or oil cap)
- Burning oil smell from engine bay
- Coolant level dropping without visible external leak
- Oil spots under vehicle near front of engine
- Overheating due to coolant loss
How to Fix
Replace the cracked oil filter housing. OEM plastic housing replacement (BMW 11428596283, $412 dealer) will eventually crack again. RECOMMENDED: Install aftermarket aluminum upgrade housing ($250-350) which permanently eliminates the heat-cycling crack issue. FCP Euro kit 11428596283KT ($450) includes all gaskets and seals. If coolant and oil have mixed, perform complete oil flush and coolant system flush before installing new housing. Check for engine damage if contamination was prolonged.
Sources for this issue (1)
BMW 2 Series models with N20, B46, and B48 engines commonly develop oil leaks from valve cover gaskets and oil filter housing gaskets. The plastic valve cover warps from heat cycles, causing gasket failure and oil leakage onto the exhaust manifold. The oil filter housing (integrated into the block) also develops leaks. These are wear items that typically fail between 60,000-100,000 miles. Oil drips onto hot exhaust, causing burning smell but rarely major issues if addressed promptly.
Common Symptoms
- Burning oil smell, especially after driving
- Visible oil on valve cover or around oil filter housing
- Low oil level warning (slow leak over time)
- Oil residue on engine bay components
- Smoke from engine bay when hot
How to Fix
Replace valve cover gasket and/or oil filter housing gasket as needed. Valve cover replacement is 2-3 hours labor. Oil filter housing gasket is 1-2 hours. Both are routine maintenance items on BMW turbo engines. Use OEM gaskets for best longevity. Clean oil residue from engine bay after repair. Monitor oil level regularly between changes to catch leaks early.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine BMW N20/N26 valve-cover gasket set 11127588418OEM11127588418
Fitment: 2014-2016 F22/F23 228i with N20/N26 when the valve-cover joint is the confirmed leak and the cover is reusable; confirm VIN and companion parts..
- Genuine BMW N20/N26 oil-filter-housing-to-block gasket 11428637821OEM11428637821
Fitment: 2014-2016 F22/F23 228i with N20/N26 when the housing-to-block joint is leaking; confirm VIN.
- Genuine BMW N20/N26 oil-cooler gasket 11428637820OEM11428637820
Fitment: 2014-2016 F22/F23 228i with N20/N26 when the heat-exchanger joint is leaking; confirm VIN..
- Genuine BMW B46/B48 valve-cover profile seal 11128618519OEM11128618519
Fitment: 2017-2021 F22/F23 230i and 230i xDrive when the valve-cover joint is leaking and the cover is reusable; confirm VIN and companion seals..
- Genuine BMW B46/B48 oil-filter-housing seal set 11425B3A1A5OEM11425B3A1A5
Fitment: 2017-2021 F22/F23 230i and 230i xDrive as cataloged; use only after confirming the housing-to-engine seal is leaking and the plastic housing is not cracked.
- Genuine BMW B46/B48 heat-exchanger sealing kit 11428591462OEM11428591462
Fitment: 2017-2021 F22/F23 230i and 230i xDrive when the heat-exchanger joint is the confirmed leak; confirm VIN and that the housing itself is sound..
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Sources for this issue (1)
The F48 X1 (2016-2023) with B46/B48 engines commonly develops oil leaks from the valve cover gasket and oil filter housing gasket. The plastic valve cover warps from heat cycles, causing the gasket to fail and leak oil onto the exhaust manifold. The oil filter housing (integrated into the block) also develops leaks from its gasket. These are wear items that typically fail between 60,000-100,000 miles. Oil drips onto hot exhaust components, causing burning oil smell but rarely causing major issues if addressed promptly.
Common Symptoms
- Burning oil smell, especially after driving
- Visible oil on valve cover or around oil filter housing
- Low oil level warning (slow leak)
- Oil residue on engine bay components
- Smoke from engine bay when engine is hot
How to Fix
Replace valve cover gasket and/or oil filter housing gasket as needed. Valve cover replacement is 2-3 hours labor. Oil filter housing gasket is 1-2 hours. Both are routine maintenance items on B-series engines. Use OEM gaskets for best longevity. Clean oil residue from engine bay after repair. Monitor oil level regularly to catch leaks early.
Sources for this issue (1)
BMW X4 models with N20, N55, B46, B48, and B58 engines commonly develop oil leaks from valve cover gaskets and oil filter housing gaskets. The plastic valve cover warps from heat cycles, causing gasket failure. The oil filter housing (integrated into engine block) also develops leaks. These are wear items that typically fail between 60,000-100,000 miles. Oil leaks onto hot exhaust components, causing burning oil smell but rarely major issues if addressed promptly.
Common Symptoms
- Burning oil smell, especially after driving
- Visible oil on valve cover or around oil filter housing
- Low oil level warning (slow leak)
- Oil residue on engine bay components
- Smoke from engine bay when hot
How to Fix
Replace valve cover gasket and/or oil filter housing gasket. Valve cover replacement is 3-4 hours labor on X4. Oil filter housing gasket is 1-2 hours. Both are routine maintenance items on BMW turbo engines. Use OEM gaskets for best longevity. Clean oil residue from engine bay after repair. Monitor oil level regularly to catch leaks early.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Elring N20 valve-cover gasket service kit 11127507217KT1OEM11127588418Cross-ref11127507217KT1
Confirm VIN and the additional fuel pipe, shaft seal and actuator-gasket requirements before ordering..
- Mahle N20 complete valve cover 11127588412Cross-ref11127588412
Includes the gasket set and related service pieces; confirm VIN and required high-pressure fuel pipe/hardware..
- Genuine BMW N55 valve-cover gasket set 11127587804OEM11127587804
Confirm VIN..
- Mahle N55 complete valve-cover kit 11127570292KT133OEM11127570292Cross-ref11127570292KT133
Fitment: 2015-2018 F26 BMW X4 xDrive35i/M40i with N55 as fitment-listed; confirm VIN, blow-by-heater option and kit contents before ordering..
- Elring F26 N20/N55 oil-filter-housing gasket 11428637821OEM11428637821Cross-refELR-632090
Confirmed oil-filter-housing-to-engine leak repair. Inspect the adjacent oil-cooler seal 11428637820 and confirm VIN/options before ordering..
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Sources for this issue (1)
NHTSA campaign 12V-475 (September 2012) covers 2013 M6 Coupe and Convertible built July 19 to September 11, 2012 (with the 2013 M5). A manufacturing tolerance error allowed the oil pump's driveshaft to separate from the pump rotor, causing sudden total loss of oil pressure, engine stall and, if driven, catastrophic engine damage. This is specific to the S63TU twin-turbo V8 in the F12/F13 M6, not the N63 650i.
Common Symptoms
- Sudden low oil pressure warning
- Engine stall
- Rod knock after oil pressure loss
How to Fix
Free recall remedy: the dealer replaces the engine oil pump. Confirm completion by VIN on nhtsa.gov; any 2013 M6 in the build window that shows a low-oil-pressure warning should be shut off immediately and not driven.
Sources for this issue (2)
P0524 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0524 mean on a BMW?
P0524 stands for "Engine Oil Pressure Too Low." This code sets when the engine control module sees that engine oil pressure has dropped below the safe minimum threshold, based on the reading from the oil pressure sensor (or switch). Adequate oil pressure is what keeps a protective film of oil between the bearings, crankshaft, and other moving parts, so the computer treats low pressure as a serious warning. It can mean the actual pressure really is too low, or that the sensor circuit is reporting a false low value. Because true low oil pressure can quickly destroy an engine, this code should be checked immediately and the engine not run hard until the cause is confirmed. On BMW it is documented across 5 models: X2, 2 Series, X1, X4, 6 Series.
What are the most common causes of P0524?
The most common causes of P0524 are: Low engine oil level, Faulty oil pressure sensor or sending unit, Worn or failing oil pump, Clogged oil pickup screen or dirty oil, Wrong oil viscosity for the engine, Worn engine bearings reducing pressure, Wiring or connector fault at the oil pressure sensor. The specific cause varies by vehicle.
How much does it cost to fix P0524 on a BMW?
Published repair estimates on BMW range from $250 to $3,000 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0524 on a different make?
View P0524 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.