Plastic guide rails hold the timing chain in place.
Applies to the engine B48B20M1, B48B20O1, B48B20U1.
Repair: 700–2,900 EUR
2019–. The fault list covers this generation and the engines in it. If the listing gives the exact version, pick it below.

Alexander Migl / CC BY-SA 4.0
What to watch for
The list covers the generation, the engines and the transmissions. Once you pick the version, only the faults that apply to it stay.
Plastic guide rails hold the timing chain in place.
Applies to the engine B48B20M1, B48B20O1, B48B20U1.
Repair: 700–2,900 EUR
The high pressure pump of these common rail diesels (Bosch CP4) can fail while driving.
Applies to the engine B47D20TU1.
In these engines the water pump is not belt driven but has its own electric motor.
Applies to the engine B46B20O1, B48B20M1, B48B20O1 and 2 more.
The internal fins of the exhaust gas recirculation cooler crack over time, and glycol coolant leaks into the intake, where it mixes with soot.
Applies to the engine B47D20TU1, B57D30O0, B57D30O2 and 1 more.
On the early model years the timing chain of the B47 stretches faster than intended.
Applies to the engine B47D20TU1.
Repair: 1,200–4,500 EUR
The B47 replaced the N47, and the maker fixed the timing chain problem.
Applies to the engine B47D20TU1, B57D30O0, B57D30O2 and 1 more.
A rubber gasket seals the oil filter housing to the block.
Applies to the engine B46B20O1, B48B20M1, B48B20O1 and 2 more.
The crankcase ventilation leads the gas that forms in the crankcase back to the intake and separates the oil out of it on the way.
Applies to the engine B48B20M1, B48B20O1, B48B20U1 and 1 more.
Repair: 80–900 EUR
3 more faults belong to this generation. On the version page, only the ones that apply stay.
The manufacturer fixes these for free at a franchised dealer. Ask with the VIN whether it was done. The list covers the whole generation. We did not filter it by model year. Some apply only to a narrower production window.
Most recent: 31 August 2026
SR/02525/26Safety recallFire31 August 2026 · EU Safety GateWater may enter the starter motor and cause damage. As a result, the engine may no longer start, or the starter motor may short-circuit or remain continuously activated. This could cause local overheating of the starter motor or thermal overload of surrounding components and lead to a vehicle fire, including when the ignition is switched off. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: 31/08/2026
SR/02180/26Safety recallFire7 July 2026 · EU Safety GateThe RSW22 starter with reinforced water tightness (RWT) may experience increased abrasion of the magnetic contact, causing deposits to build up at the lowest point inside the relay. These deposits may increase relay contact resistance, leading to starting failures or short circuits. If a short circuit occurs, either when attempting to start the vehicle or while driving due to vibration-related movement of the deposits, it could cause a thermal event and increase the risk of fire. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: 07/07/2026
SR/00551/26Safety recallFire30 January 2026 · EU Safety GateThe failure concerns the RSW22 starter, type RWT (reinforced for watertightness). Increased abrasion of the magnetic contact can lead to the formation of deposits at the lowest point of the relay interior. This in turn can increase the resistance of the relay contact, causing accidental ignition or even short circuits, possibly leading to a thermal reaction and fire. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: 30/01/2026
SR/00568/26Safety recallFire30 January 2026 · EU Safety GateThe failure concerns the RSW22 starter, type RWT (reinforced for watertightness). Increased abrasion of the magnetic contact can lead to the formation of deposits at the lowest point of the relay interior. This in turn can increase the resistance of the relay contact, causing accidental ignition or even short circuits, possibly leading to a thermal reaction and fire. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: 30/01/2026
SR/00569/26Safety recallFire30 January 2026 · EU Safety GateThe failure concerns the RSW22 starter, type RWT (reinforced for watertightness). Increased abrasion of the magnetic contact can lead to the formation of deposits at the lowest point of the relay interior. This in turn can increase the resistance of the relay contact, causing accidental ignition or even short circuits, possibly leading to a thermal reaction and fire. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: 30/01/2026
A12/00993/21Safety recallInjuries21 April 2021 · EU Safety GateThe abdominal strap (safety-belt buckle) may not have been correctly screwed. This could affect the restraining capacity of the safety-belt and increase the risk of injury in the event of an accident. The product does not comply with the requirements laid down in the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: 21/04/2021
A12/00068/19Safety recallInjuriesno date · EU Safety GateThe press-in force of the counterbalance shaft’s bearing shells may not have met the specifications, which could cause the counterbalance shaft to become loose. As a result, the engine could be damaged and locked in motion, increasing the risk of an accident.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
A12/00184/24Safety recallInjuriesno date · EU Safety GateDue to a manufacturing error, the weld seam of the integrated transmission control unit (ITCU) may not have been correctly executed. As a result, transmission oil could leak into the ITCU, causing it to fail. This may lead to transmission seizure, increasing the risk of an accident. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
A12/00441/24Safety recallFireno date · EU Safety GateA defect on the cylinder head cover could allow oil to leak and spread through the engine compartment, creating a risk of fire. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
A12/00636/20Safety recallInjuriesno date · EU Safety GateThe cable connecting the hall sensor with the seat buckle might be too short. Consequently, the sensor might detach from the buckle, causing a faulty seatbelt lock recognition, impairing the functioning of the restraint system and the deployment of the airbag, increasing the risk of injury in the event of an accident.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
A12/00976/22Safety recallFire, Injuriesno date · EU Safety GateThe micro gas generator inside the seat belt retractor may not have been manufactured to specifications. This may lead to an impairment of the restraint function in case of an accident, increasing the risk of injury. Moreover, there may be spark formation in case of a pressure release outside of the inflator damaged tube, increasing the risk of fire. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
A12/00988/23Safety recallInjuriesno date · EU Safety GateThe driver's and/or passenger's seat could break the frame rail that connects the seat to the guide rails on the vehicle floor. The stability of the seats may be affected, increasing the risk of injury in case of an accident. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
A12/01162/20Safety recallInjuriesno date · EU Safety GateA vibration fatigue failure of the track rod may occur due to to an exceptional bending load. Such a failure would lead to a loss of wheel control on one side of the vehicle, increasing the risk of an accident.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
A12/01342/20Safety recallFireno date · EU Safety GateA short circuit in the high-voltage battery could occur during initial charging due to a particle in the form of a welding bead. This may trigger a chain reaction in the battery, increasing the risk of fire.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
A12/01377/22Safety recallFireno date · EU Safety GateDefects in the winding of cell-internal foils in the high-voltage batteries can lead to the occurrence of increased self-discharge. This can cause high voltage cell modules to overheat, increasing the risk of fire. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
A12/01718/22Safety recallInjuriesno date · EU Safety GateThe front safety belt on the left side may be faulty. This can increase the risk of injury in the event of an accident. The product does not comply with the requirements laid down in the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
A12/03131/23Safety recallInjuriesno date · EU Safety GateThe screw connection of the servo unit on the gear rack casing of the steering system may be faulty. This could cause the steering system to fail and become blocked, increasing the risk of an accident. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
A12/0966/19Safety recallInjuriesno date · EU Safety GateThe knee airbags may be defective. This could lead to inadequate inflation of the knee airbags in the event of an accident, increasing the risk of injury.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
A12/1474/19Safety recallInjuriesno date · EU Safety GateThe head restraint interlock of the rear center seat may not have been welded sufficiently to the head restraint support rod bracket and could break. This could cause an inadvertent folding down of the head restraint in case of a rear impact, increasing the risk of an injury.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
SR/01734/25Safety recallFireno date · EU Safety GateThe positive battery cable of the starter-generator may not have been manufactured correctly. This could result in a loose electrical connection, leading to excessive contact resistance. The vehicle cannot charge or start. Contact points in the starter-generator could overheat and cause a vehicle fire. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
SR/03830/25Safety recallFireno date · EU Safety GateWater may come into contact with the starter relay and gradually cause corrosion. This could affect the electrical connection inside the relay and make the engine difficult to start. It may also result in a short circuit and could cause the starter to overheat leading to a fire when the vehicle is in motion or when it is parked with the ignition off. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown
G20 · 2019–
The fault list opens on the version page.
125 versions
2.0 l · 1995 cm³
no engine code
316d
2019–2022 · 316d
2.0 l · 1995 cm³
no engine code
316d Business Edition
2019–2022 · 316d Business Edition
2.0 l · 1995 cm³
no engine code
316d Business Edition Plus
2019–2022 · 316d Business Edition Plus
2.0 l · 1995 cm³
no engine code
316d Touring
2019–2022 · 316d Touring
2.0 l · 1995 cm³
no engine code
316d Touring Business Edition
2019–2022 · 316d Touring Business Edition
2.0 l · 1995 cm³
no engine code
316d Touring Business Edition Plus
2019–2022 · 316d Touring Business Edition Plus
2.0 l · 1995 cm³
B47D20TU1 · GS6
318d
2019–2022 · 318d
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
318d
2019–2022 · 318d
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
318d Business Edition
2019–2022 · 318d Business Edition
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
318d Business Edition Plus
2019–2022 · 318d Business Edition Plus
2.0 l · 1995 cm³
B47D20TU1 · GS6
318d Corporate Executive
2019–2022 · 318d Corporate Executive
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
318d Corporate Executive
2019–2022 · 318d Corporate Executive
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
318d Touring
2019–2022 · 318d Touring
2.0 l · 1995 cm³
B47D20TU1 · GS6
318d Touring
2019–2022 · 318d Touring
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
318d Touring Business Edition
2019–2022 · 318d Touring Business Edition
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
318d Touring Business Edition Plus
2019–2022 · 318d Touring Business Edition Plus
2.0 l · 1995 cm³
B47D20TU1 · GS6
318d Touring Corporate Executive
2019–2022 · 318d Touring Corporate Executive
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
318d Touring Corporate Executive
2019–2022 · 318d Touring Corporate Executive
2.0 l · 1995 cm³
B47D20TU1 · GS6
320d
2019–2022 · 320d
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
320d
2019–2022 · 320d
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
320d Business Edition
2019–2022 · 320d Business Edition
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
320d Business Edition Plus
2019–2022 · 320d Business Edition Plus
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
320d Corporate Executive
2019–2022 · 320d Corporate Executive
2.0 l · 1995 cm³
B47D20TU1 · GS6
320d Corporate Executive
2019–2022 · 320d Corporate Executive
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
320d Touring
2019–2022 · 320d Touring
2.0 l · 1995 cm³
B47D20TU1 · GS6
320d Touring
2019–2022 · 320d Touring
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
320d Touring Business Edition
2019–2022 · 320d Touring Business Edition
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
320d Touring Business Edition Plus
2019–2022 · 320d Touring Business Edition Plus
2.0 l · 1995 cm³
B47D20TU1 · GS6
320d Touring Corporate Executive
2019–2022 · 320d Touring Corporate Executive
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
320d Touring Corporate Executive
2019–2022 · 320d Touring Corporate Executive
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
320d xDrive
2019–2022 · 320d xDrive
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
320d xDrive Business Edition
2019–2022 · 320d xDrive Business Edition
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
320d xDrive Business Edition Plus
2019–2022 · 320d xDrive Business Edition Plus
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
320d xDrive Touring
2019–2022 · 320d xDrive Touring
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
320d xDrive Touring Business Edition
2019–2022 · 320d xDrive Touring Business Edition
2.0 l · 1995 cm³
B47D20TU1 · ZF8HP
320d xDrive Touring Business Edition Plus
2019–2022 · 320d xDrive Touring Business Edition Plus
2.0 l · 1998 cm³
B48B20U1 · ZF8HP
318i
2019–2022 · 318i
2.0 l · 1998 cm³
B48B20U1
318i
2019–2022 · 318i
2.0 l · 1998 cm³
B48B20U1 · ZF8HP
318i Business Edition
2019–2022 · 318i Business Edition
2.0 l · 1998 cm³
B48B20U1
318i Business Edition
2019–2022 · 318i Business Edition
2.0 l · 1998 cm³
B48B20U1
318i Business Edition Plus
2019–2022 · 318i Business Edition Plus
2.0 l · 1998 cm³
B48B20U1 · ZF8HP
318i Business Edition Plus
2019–2022 · 318i Business Edition Plus
2.0 l · 1998 cm³
B48B20U1 · ZF8HP
318i Corporate Executive
2019–2022 · 318i Corporate Executive
2.0 l · 1998 cm³
B48B20U1 · ZF8HP
318i Touring
2019–2022 · 318i Touring
2.0 l · 1998 cm³
B48B20U1
318i Touring
2019–2022 · 318i Touring
2.0 l · 1998 cm³
B48B20U1 · ZF8HP
318i Touring Business Edition
2019–2022 · 318i Touring Business Edition
2.0 l · 1998 cm³
B48B20U1
318i Touring Business Edition
2019–2022 · 318i Touring Business Edition
2.0 l · 1998 cm³
B48B20U1
318i Touring Business Edition Plus
2019–2022 · 318i Touring Business Edition Plus
2.0 l · 1998 cm³
B48B20U1 · ZF8HP
318i Touring Business Edition Plus
2019–2022 · 318i Touring Business Edition Plus
2.0 l · 1998 cm³
B48B20U1 · ZF8HP
318i Touring Corporate Executive
2019–2022 · 318i Touring Corporate Executive
2.0 l · 1998 cm³
B47D20TU1 · ZF8HP
320e
2019–2022 · 320e
2.0 l · 1998 cm³
B47D20TU1 · ZF8HP
320e Business Edition Plus
2019–2022 · 320e Business Edition Plus
2.0 l · 1998 cm³
B47D20TU1 · ZF8HP
320e Touring
2019–2022 · 320e Touring
2.0 l · 1998 cm³
B47D20TU1 · ZF8HP
320e Touring Business Edition Plus
2019–2022 · 320e Touring Business Edition Plus
2.0 l · 1998 cm³
B47D20TU1 · ZF8HP
320e xDrive Touring
2019–2022 · 320e xDrive Touring
2.0 l · 1998 cm³
B47D20TU1 · ZF8HP
320e xDrive Touring Business Edition Plus
2019–2022 · 320e xDrive Touring Business Edition Plus
2.0 l · 1998 cm³
B48B20M1 · ZF8HP
320i
2019–2022 · 320i
2.0 l · 1998 cm³
B48B20M1 · ZF8HP
320i Business Edition
2019–2022 · 320i Business Edition
2.0 l · 1998 cm³
B48B20M1 · ZF8HP
320i Business Edition Plus
2019–2022 · 320i Business Edition Plus
2.0 l · 1998 cm³
B48B20M1 · ZF8HP
320i Corporate Executive
2019–2022 · 320i Corporate Executive
Neighbouring generations
G20/G21 (2019-). If the listing is from the changeover year, look at the neighbour too.
Common questions
2019–. The changeover year can fall in two generations. If the listing is from that year, look at the neighbour too.
No. It depends on the engine and the transmission too.
The fault list is.
We write the descriptions, and we put the source next to them. A person reviews them before they go out. They are still information, not a technical expert opinion.