BMW X1 F48
Weaknesses, engine ratings and buying advice
The F48 was BMW's first front-wheel-drive X1 — built on the UKL2 platform shared with the MINI Countryman F60. More space than the E84 predecessor, more modern electronics.
Diesel: only the B47D20 — better than the notorious N47 (Vorgänger E84), but chain issues not entirely gone. Replacement around 2,800 euros. Oil changes every 15,000 km mandatory. B48 petrol is the safe bet. Avoid the 7-speed DKG — the 8-speed Aisin automatic is far better. xDrive: transfer case needle bearing issue from ~80,000 km.
Test-drive checklist: Cold start — chain rattle? Roundabouts: xDrive grinding? DKG clutch shudder on hills? Check under oil cap for 'mayonnaise'.
2026 market: From 13,000 euros. Insider pick: sDrive20i with Aisin automatic, 2019+.
231 PS
xDrive25i · Benzin
Solid Turbo Petrol
DecentGenerations
Engine Overview
The BMW X1 F48 is available with 10 engine variants — from 102 to 306 hp.
Modular four-cylinder diesel as a direct successor to the N47 — and a significant improvement. The timing chain now sits at the front of the engine (belt side), massively simplifying maintenance and diagnostics. The biggest N47 problem is structurally eliminated. Early examples (2014-2016) still had occasional chain stretch, from 2017 onward this is no longer an issue. The EGR cooler was subject to a BMW recall for potential fire risk — when buying used, always verify the recall was performed. In daily use a very balanced engine: Depending on variant 116 to 190 hp — even the base version is sufficient for relaxed driving, the 8-speed automatic pairing (ZF 8HP) is one of the best combinations in the segment. Real-world consumption 5-6 L/100km, documented mileages beyond 300,000 km. Weak points remain DPF with pure short-distance driving and typical diesel issues (EGR carbon buildup, injector wear from 160,000 km). Overall a solid, mature diesel — not maintenance-free, but in direct N47 comparison a different league.
- !! Timing chain elongation on early models (2014–2016) from 120,000 km
Early B47 engines (2014–2016) are prone to premature chain elongation. The tensioner can no longer compensate. Rattling on cold start is the typical warning sign before chain snap and engine damage.
Symptoms: Metallic rattling or clattering on cold start; subsides after warm-up; in advanced cases audible during driving; MIL may illuminate - !! EGR cooler leak with fire risk (recall) from 100,000 km
Overheating and leaking EGR coolers can vaporise glycol and trigger self-ignition. BMW recalled affected vehicles. If coolant enters the combustion chamber, hydraulic lock and engine damage are possible.
Symptoms: Coolant level drops without visible leak; whitish smoke from exhaust; rough idle; MIL; limp mode; rarely smoke from engine bay - !! Turbo cascade failure from 130,000 km
Turbocharger develops axial play, blocks oil return and causes cascading damage to rod bearings, crankshaft and EGR cooler. Metal shavings circulate through entire oil system.
Symptoms: Power loss, whistling under load, increased oil consumption, blue smoke, rough running
+ 4 more engine weaknesses + vehicle weaknesses
Modular four-cylinder diesel as a direct successor to the N47 — and a significant improvement. The timing chain now sits at the front of the engine (belt side), massively simplifying maintenance and diagnostics. The biggest N47 problem is structurally eliminated. Early examples (2014-2016) still had occasional chain stretch, from 2017 onward this is no longer an issue. The EGR cooler was subject to a BMW recall for potential fire risk — when buying used, always verify the recall was performed. In daily use a very balanced engine: Depending on variant 116 to 190 hp — even the base version is sufficient for relaxed driving, the 8-speed automatic pairing (ZF 8HP) is one of the best combinations in the segment. Real-world consumption 5-6 L/100km, documented mileages beyond 300,000 km. Weak points remain DPF with pure short-distance driving and typical diesel issues (EGR carbon buildup, injector wear from 160,000 km). Overall a solid, mature diesel — not maintenance-free, but in direct N47 comparison a different league.
- !! Timing chain elongation on early models (2014–2016) from 120,000 km
Early B47 engines (2014–2016) are prone to premature chain elongation. The tensioner can no longer compensate. Rattling on cold start is the typical warning sign before chain snap and engine damage.
Symptoms: Metallic rattling or clattering on cold start; subsides after warm-up; in advanced cases audible during driving; MIL may illuminate - !! EGR cooler leak with fire risk (recall) from 100,000 km
Overheating and leaking EGR coolers can vaporise glycol and trigger self-ignition. BMW recalled affected vehicles. If coolant enters the combustion chamber, hydraulic lock and engine damage are possible.
Symptoms: Coolant level drops without visible leak; whitish smoke from exhaust; rough idle; MIL; limp mode; rarely smoke from engine bay - !! Turbo cascade failure from 130,000 km
Turbocharger develops axial play, blocks oil return and causes cascading damage to rod bearings, crankshaft and EGR cooler. Metal shavings circulate through entire oil system.
Symptoms: Power loss, whistling under load, increased oil consumption, blue smoke, rough running
+ 4 more engine weaknesses + vehicle weaknesses
Modular four-cylinder diesel as a direct successor to the N47 — and a significant improvement. The timing chain now sits at the front of the engine (belt side), massively simplifying maintenance and diagnostics. The biggest N47 problem is structurally eliminated. Early examples (2014-2016) still had occasional chain stretch, from 2017 onward this is no longer an issue. The EGR cooler was subject to a BMW recall for potential fire risk — when buying used, always verify the recall was performed. In daily use a very balanced engine: Depending on variant 116 to 190 hp — even the base version is sufficient for relaxed driving, the 8-speed automatic pairing (ZF 8HP) is one of the best combinations in the segment. Real-world consumption 5-6 L/100km, documented mileages beyond 300,000 km. Weak points remain DPF with pure short-distance driving and typical diesel issues (EGR carbon buildup, injector wear from 160,000 km). Overall a solid, mature diesel — not maintenance-free, but in direct N47 comparison a different league.
- !! Timing chain elongation on early models (2014–2016) from 120,000 km
Early B47 engines (2014–2016) are prone to premature chain elongation. The tensioner can no longer compensate. Rattling on cold start is the typical warning sign before chain snap and engine damage.
Symptoms: Metallic rattling or clattering on cold start; subsides after warm-up; in advanced cases audible during driving; MIL may illuminate - !! EGR cooler leak with fire risk (recall) from 100,000 km
Overheating and leaking EGR coolers can vaporise glycol and trigger self-ignition. BMW recalled affected vehicles. If coolant enters the combustion chamber, hydraulic lock and engine damage are possible.
Symptoms: Coolant level drops without visible leak; whitish smoke from exhaust; rough idle; MIL; limp mode; rarely smoke from engine bay - !! Turbo cascade failure from 130,000 km
Turbocharger develops axial play, blocks oil return and causes cascading damage to rod bearings, crankshaft and EGR cooler. Metal shavings circulate through entire oil system.
Symptoms: Power loss, whistling under load, increased oil consumption, blue smoke, rough running
+ 4 more engine weaknesses + vehicle weaknesses
Modular four-cylinder diesel as a direct successor to the N47 — and a significant improvement. The timing chain now sits at the front of the engine (belt side), massively simplifying maintenance and diagnostics. The biggest N47 problem is structurally eliminated. Early examples (2014-2016) still had occasional chain stretch, from 2017 onward this is no longer an issue. The EGR cooler was subject to a BMW recall for potential fire risk — when buying used, always verify the recall was performed. In daily use a very balanced engine: Depending on variant 116 to 190 hp — even the base version is sufficient for relaxed driving, the 8-speed automatic pairing (ZF 8HP) is one of the best combinations in the segment. Real-world consumption 5-6 L/100km, documented mileages beyond 300,000 km. Weak points remain DPF with pure short-distance driving and typical diesel issues (EGR carbon buildup, injector wear from 160,000 km). Overall a solid, mature diesel — not maintenance-free, but in direct N47 comparison a different league.
- !! Timing chain elongation on early models (2014–2016) from 120,000 km
Early B47 engines (2014–2016) are prone to premature chain elongation. The tensioner can no longer compensate. Rattling on cold start is the typical warning sign before chain snap and engine damage.
Symptoms: Metallic rattling or clattering on cold start; subsides after warm-up; in advanced cases audible during driving; MIL may illuminate - !! EGR cooler leak with fire risk (recall) from 100,000 km
Overheating and leaking EGR coolers can vaporise glycol and trigger self-ignition. BMW recalled affected vehicles. If coolant enters the combustion chamber, hydraulic lock and engine damage are possible.
Symptoms: Coolant level drops without visible leak; whitish smoke from exhaust; rough idle; MIL; limp mode; rarely smoke from engine bay - !! Turbo cascade failure from 130,000 km
Turbocharger develops axial play, blocks oil return and causes cascading damage to rod bearings, crankshaft and EGR cooler. Metal shavings circulate through entire oil system.
Symptoms: Power loss, whistling under load, increased oil consumption, blue smoke, rough running
+ 4 more engine weaknesses + vehicle weaknesses
Modular three-cylinder turbo with a lively character. Turbocharger and timing chain are wear items; vibration balance handled by a balancer shaft.
- !! Timing chain elongation from 70,000 km
Same timing chain issue as N20 and B48. Plastic guide rails wear out, chain elongates. Slightly less loaded on the 3-cylinder.
Symptoms: Rattling on cold start, engine check light, rough idle - !! Crankshaft bearing half-shell undersized (early production) from 80,000 km
Early B38 engines (manual gearbox, built before April 2015) had an undersized crankshaft half-shell bearing. BMW switched to 360° bearings and replaced affected engines as a goodwill gesture (up to 120,000 km / 5 years).
Symptoms: Knocking or hammering from the engine block under load; oil pressure drop; in extreme cases engine seizure due to spun bearing - !! Turbocharger shaft seal leaking — oil consumption from 100,000 km
Turbocharger shaft seals become porous and allow oil into the combustion process. On the 3-cylinder, exhaust gas pressure pulses cause higher wear than on four-cylinders.
Symptoms: Blue smoke on cold start or wide-open throttle, oil consumption above 0.5 L/1,000 km, oil mist in intercooler, smoke after long motorway run.
+ 4 more engine weaknesses + vehicle weaknesses
Modular four-cylinder turbo and workhorse of the current BMW lineup. Wide power range from 135 to 306 hp (M135i/M235i). Structurally the best four-cylinder petrol BMW has ever built: timing chain at front, closed oil circuit, Valvetronic variable valve lift. Oil consumption stays under control when BMW-spec oil (LL-01 or LL-17FE+) is used. Typical wear items are the electric water pump (from around 80,000 km) and the high-pressure pump with direct injection. Not an engine to fear — but BMW service intervals are too long; those who care for their B48 change oil every 10,000-12,000 km.
- !! Timing chain guide rail breaks from 60,000 km
Timing chain guide rail can break; chain jump and engine damage follows. More common on early production years and with spirited driving.
Symptoms: Rattling, clattering from the engine, sudden power loss, engine damage - !! Oil filter housing leaking — coolant loss from 60,000 km
Oil filter housing with integrated oil/water heat exchanger leaks. Coolant loss and overheating risk from about 60,000 km.
Symptoms: Coolant level warning, oil puddle under engine, overheating - !! Coolant bleed line at cylinder head breaks from 70,000 km
A plastic bleed line between the cylinder head and expansion tank becomes porous and breaks. Coolant loss follows; the mounting location is difficult to access, so labour costs dominate.
Symptoms: Dropping coolant level; coolant warning on the instrument cluster; faint sweet smell; no visible puddle under the car
+ 6 more engine weaknesses + vehicle weaknesses
Modular four-cylinder turbo and workhorse of the current BMW lineup. Wide power range from 135 to 306 hp (M135i/M235i). Structurally the best four-cylinder petrol BMW has ever built: timing chain at front, closed oil circuit, Valvetronic variable valve lift. Oil consumption stays under control when BMW-spec oil (LL-01 or LL-17FE+) is used. Typical wear items are the electric water pump (from around 80,000 km) and the high-pressure pump with direct injection. Not an engine to fear — but BMW service intervals are too long; those who care for their B48 change oil every 10,000-12,000 km.
- !! Timing chain guide rail breaks from 60,000 km
Timing chain guide rail can break; chain jump and engine damage follows. More common on early production years and with spirited driving.
Symptoms: Rattling, clattering from the engine, sudden power loss, engine damage - !! Oil filter housing leaking — coolant loss from 60,000 km
Oil filter housing with integrated oil/water heat exchanger leaks. Coolant loss and overheating risk from about 60,000 km.
Symptoms: Coolant level warning, oil puddle under engine, overheating - !! Coolant bleed line at cylinder head breaks from 70,000 km
A plastic bleed line between the cylinder head and expansion tank becomes porous and breaks. Coolant loss follows; the mounting location is difficult to access, so labour costs dominate.
Symptoms: Dropping coolant level; coolant warning on the instrument cluster; faint sweet smell; no visible puddle under the car
+ 6 more engine weaknesses + vehicle weaknesses
Modular four-cylinder turbo and workhorse of the current BMW lineup. Wide power range from 135 to 306 hp (M135i/M235i). Structurally the best four-cylinder petrol BMW has ever built: timing chain at front, closed oil circuit, Valvetronic variable valve lift. Oil consumption stays under control when BMW-spec oil (LL-01 or LL-17FE+) is used. Typical wear items are the electric water pump (from around 80,000 km) and the high-pressure pump with direct injection. Not an engine to fear — but BMW service intervals are too long; those who care for their B48 change oil every 10,000-12,000 km.
- !! Timing chain guide rail breaks from 60,000 km
Timing chain guide rail can break; chain jump and engine damage follows. More common on early production years and with spirited driving.
Symptoms: Rattling, clattering from the engine, sudden power loss, engine damage - !! Oil filter housing leaking — coolant loss from 60,000 km
Oil filter housing with integrated oil/water heat exchanger leaks. Coolant loss and overheating risk from about 60,000 km.
Symptoms: Coolant level warning, oil puddle under engine, overheating - !! Coolant bleed line at cylinder head breaks from 70,000 km
A plastic bleed line between the cylinder head and expansion tank becomes porous and breaks. Coolant loss follows; the mounting location is difficult to access, so labour costs dominate.
Symptoms: Dropping coolant level; coolant warning on the instrument cluster; faint sweet smell; no visible puddle under the car
+ 6 more engine weaknesses + vehicle weaknesses
Modular three-cylinder turbo with a lively character. Turbocharger and timing chain are wear items; vibration balance handled by a balancer shaft.
- !! Timing chain elongation from 70,000 km
Same timing chain issue as N20 and B48. Plastic guide rails wear out, chain elongates. Slightly less loaded on the 3-cylinder.
Symptoms: Rattling on cold start, engine check light, rough idle - !! Crankshaft bearing half-shell undersized (early production) from 80,000 km
Early B38 engines (manual gearbox, built before April 2015) had an undersized crankshaft half-shell bearing. BMW switched to 360° bearings and replaced affected engines as a goodwill gesture (up to 120,000 km / 5 years).
Symptoms: Knocking or hammering from the engine block under load; oil pressure drop; in extreme cases engine seizure due to spun bearing - !! Turbocharger shaft seal leaking — oil consumption from 100,000 km
Turbocharger shaft seals become porous and allow oil into the combustion process. On the 3-cylinder, exhaust gas pressure pulses cause higher wear than on four-cylinders.
Symptoms: Blue smoke on cold start or wide-open throttle, oil consumption above 0.5 L/1,000 km, oil mist in intercooler, smoke after long motorway run.
+ 4 more engine weaknesses + vehicle weaknesses
Modular four-cylinder turbo and workhorse of the current BMW lineup. Wide power range from 135 to 306 hp (M135i/M235i). Structurally the best four-cylinder petrol BMW has ever built: timing chain at front, closed oil circuit, Valvetronic variable valve lift. Oil consumption stays under control when BMW-spec oil (LL-01 or LL-17FE+) is used. Typical wear items are the electric water pump (from around 80,000 km) and the high-pressure pump with direct injection. Not an engine to fear — but BMW service intervals are too long; those who care for their B48 change oil every 10,000-12,000 km.
- !! Timing chain guide rail breaks from 60,000 km
Timing chain guide rail can break; chain jump and engine damage follows. More common on early production years and with spirited driving.
Symptoms: Rattling, clattering from the engine, sudden power loss, engine damage - !! Oil filter housing leaking — coolant loss from 60,000 km
Oil filter housing with integrated oil/water heat exchanger leaks. Coolant loss and overheating risk from about 60,000 km.
Symptoms: Coolant level warning, oil puddle under engine, overheating - !! Coolant bleed line at cylinder head breaks from 70,000 km
A plastic bleed line between the cylinder head and expansion tank becomes porous and breaks. Coolant loss follows; the mounting location is difficult to access, so labour costs dominate.
Symptoms: Dropping coolant level; coolant warning on the instrument cluster; faint sweet smell; no visible puddle under the car
+ 6 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Recall: EGR Cooler Fire Risk (Diesel) On diesel engines, glycol can escape from the EGR cooler. Contact with soot deposits at high temperatures creates an increased fire risk. Vehicles built up to January 2017 are affected (first wave); the recall was expanded multiple times. Symptoms: Smoke from the engine bay, burnt smell on pull-away, in rare cases open flame | Low | |
| Recall: PHEV High-Voltage Battery Short-Circuit Risk On the xDrive25e (plug-in hybrid), foreign objects from battery production can cause short circuits in the high-voltage pack. Vehicles with a production date of January to September 2020 are affected. Symptoms: No driver-visible warning before short circuit; in rare cases fire risk with a fully charged battery | Low |
Test Reports
TÜV Report 2022
The X1 F48 stands out at MOT with elevated defect rates despite good breakdown figures — oil loss and worn bonnet struts are the main causes.
2021-11ADAC Breakdown Statistics 2022
Despite TÜV findings on oil loss, the X1 F48 shows excellent breakdown reliability.
2022-04Top Reported Issues
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Known Problems and Issues +
A total of 31 weaknesses have been documented for the BMW X1 F48 (2015–2022) — 23 engine-related and 8 vehicle-related. Typical issues affect Other, Gearbox, Suspension, HVAC.
X1 (B47D20, 2015–2022) — Be Careful: Timing chain elongation on early models (2014–2016), EGR cooler leak with fire risk (recall), Turbo cascade failure. Power: 143–150 PS.
X1 (B47D20, 2015–2022) — Be Careful: Timing chain elongation on early models (2014–2016), EGR cooler leak with fire risk (recall), Turbo cascade failure. Power: 184–197 PS.
X1 (B47D20, 2015–2019) — Be Careful: Timing chain elongation on early models (2014–2016), EGR cooler leak with fire risk (recall), Turbo cascade failure. Power: 231 PS.
X1 (B47D20, 2015–2022) — Be Careful: Timing chain elongation on early models (2014–2016), EGR cooler leak with fire risk (recall), Turbo cascade failure. Power: 136–143 PS.
X1 (B48B20, 2015–2022) — Be Careful: Timing chain guide rail breaks, Oil filter housing leaking — coolant loss, Coolant bleed line at cylinder head breaks. Power: 136 PS.
X1 (B48B20, 2015–2022) — Be Careful: Timing chain guide rail breaks, Oil filter housing leaking — coolant loss, Coolant bleed line at cylinder head breaks. Power: 192 PS.
X1 (B48B20, 2015–2019) — Be Careful: Timing chain guide rail breaks, Oil filter housing leaking — coolant loss, Coolant bleed line at cylinder head breaks. Power: 231 PS.
X1 (B38B15, 2019–2022) — Be Careful: Timing chain elongation, Crankshaft bearing half-shell undersized (early production), Turbocharger shaft seal leaking — oil consumption. Power: 150–156 PS.
X1 (B38B15, 2020–2022) — Be Careful: Timing chain elongation, Crankshaft bearing half-shell undersized (early production), Turbocharger shaft seal leaking — oil consumption. Power: 136–140 PS.
What to watch out for with the BMW X1? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
What problems and weaknesses does the BMW X1 F48 have? +
What should I look for when buying a used BMW X1 F48? +
Which engine is recommended? +
Which BMW X1 F48 engine is the most fun? +
Is the BMW X1 F48 worth buying used? +
What horsepower variants are available for the BMW X1 F48? +
Last updated: February 2026 · All information without guarantee