BMW Buyer's Guide

Comprehensive Used Car Analysis
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B47D20 2.0L Diesel
B47D20 2.0L Diesel
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B47D20

2.0L Diesel
B-series • B47 family • 2014–2025
72%
Engine Reliability
The B47 replaced the problematic N47 and addressed the critical timing chain placement issue by moving it to the front of the engine. It's a significant improvement in reliability while maintaining good performance and economy. EGR and injector issues are the main concerns.
2.0L
Displacement
I4
Layout
116–190 hp
Power
270–400 Nm
Torque
Diesel
Fuel
Turbocharged
Aspiration
Technology & Features
Modular engine architectureCommon-rail solenoid injectionVariable geometry turboAluminium blockFront-mounted timing chain
Fuel SystemCommon-rail direct injection
ValvetrainDOHC 16-valve
Used In 6 Applications
1 Series F20 / F21 116d, 118d, 120d 1 Series F40 116d, 118d, 120d 3 Series F30 / F31 / F34 318d, 320d 3 Series G20 / G21 318d, 320d 5 Series G30 / G31 520d X3 G01 X3 18d, X3 20d
3
Known Issues
0
Critical
2
Wear Items
6
Applications

Known Issues – B47D20

high EGR Cooler Leak Moderate (~20%)
EGR cooler can develop internal leaks, mixing coolant into the exhaust system.
Typical Mileage
80,000–150,000 km
Est. Repair Cost
€500–€1,000
DIY Friendly
✗ Specialist
Coolant lossWhite exhaust smokeOverheating
medium Injector Seal Leak Moderate (~25%)
Copper injector seals deteriorate, causing a black tar-like residue around injectors and diesel smell.
Typical Mileage
80,000–130,000 km
Est. Repair Cost
€200–€400
DIY Friendly
✓ Yes
Diesel smellBlack residue around injectorsRough idle
medium EGR Valve Clogging Common (~30%)
EGR valve clogs with carbon, especially on cars doing mostly short trips.
Typical Mileage
80,000–130,000 km
Est. Repair Cost
€300–€600
DIY Friendly
✓ Yes
Reduced powerRough idleEML light

Wear & Maintenance – B47D20

DPF (Diesel Particulate Filter) 150,000–250,000 km
NewReplace
Replacement Cost€800–€2,000
Wear Factor40%
Glow Plugs 80,000–120,000 km
NewReplace
Replacement Cost€100–€250
Wear Factor45%

Applications (6)

1 Series F20 / F21

F20
2011–2019
Variants116d, 118d, 120d
Power116–190 hp
Torque270–400 Nm
BodyHatchback
Reliability74%
Car-Specific Issues (F20)
mediumTailgate Wiring Harness Failure
lowDriveshaft Vibration

1 Series F40

F40
2019–2025
Variants116d, 118d, 120d
Power116–190 hp
Torque270–400 Nm
BodyHatchback, Sedan
Reliability80%
Car-Specific Issues (F40)
lowFront-Wheel-Drive Torque Steer (M135i)

3 Series F30 / F31 / F34

F30
2012–2019
Variants318d, 320d
Power150–190 hp
Torque320–400 Nm
BodySedan, Touring, Gran Turismo
Reliability72%
Car-Specific Issues (F30)
mediumBattery Discharge Issues
lowDoor Lock Actuator Failure

3 Series G20 / G21

G20
2019–2025
Variants318d, 320d
Power150–190 hp
Torque350–400 Nm
BodySedan, Touring
Reliability78%
Car-Specific Issues (G20)
lowiDrive Software Glitches

5 Series G30 / G31

G30
2017–2023
Variants520d
Power190 hp
Torque400 Nm
BodySedan, Touring
Reliability73%
Car-Specific Issues (G30)
medium48V Mild-Hybrid Starter-Generator Issues
lowDisplay Key Battery Drain

X3 G01

G01
2017–2025
VariantsX3 18d, X3 20d
Power150–190 hp
Torque350–400 Nm
BodySAV
Reliability78%
Car-Specific Issues (G01)
lowTailgate Actuator Failure

Transmissions (2)

6-Speed Manual (Getrag)
6-Speed Manual (Getrag)
6-Speed Manual (Getrag)
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6-Speed Manual (Getrag)

Getrag • 6-speed manual • 2003–2019

Getrag 6-speed manual used across a wide range of BMWs. Different models handle various torque capacities. Known for precise, mechanical shift action. The GS6-53DZ handles up to 500Nm (used with 335i/M135i).
Known Issues2
medium 2nd Gear Synchro Wear Moderate (~20%)
Second gear synchros can wear, especially on higher-torque applications, causing grinding on fast 2nd gear shifts.
Typical Mileage
100,000–180,000 km
Est. Repair Cost
€800–€1,500
DIY Friendly
✗ Specialist
Grinding into 2nd gearDifficulty downshifting to 2nd
low Clutch Release Bearing Noise Moderate (~25%)
Clutch release (throw-out) bearing develops a chirp or whine when clutch is depressed.
Typical Mileage
80,000–150,000 km
Est. Repair Cost
€400–€800 (usually replaced with clutch)
DIY Friendly
✗ Specialist
Chirping with clutch pressedWhining noiseVibration in pedal
Wear Items
Clutch Assembly 100,000–180,000 km
NewReplace
Replacement Cost€700–€1,500
Wear Factor55%
Dual Mass Flywheel 150,000–250,000 km
NewReplace
Replacement Cost€500–€1,000
Wear Factor45%
Transmission Fluid Every 80,000 km
NewReplace
Replacement Cost€50–€120
Wear Factor30%
Fluid TypeMTF-LT-4 / MTF-LT-5
Service IntervalLifetime fill (recommended every 80,000 km)
8-Speed Automatic (ZF 8HP)
8-Speed Automatic (ZF 8HP)
8-Speed Automatic (ZF 8HP)
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8-Speed Automatic (ZF 8HP)

ZF • 8-speed automatic • 2009–present

Widely considered one of the best automatic transmissions ever made. Lightning-fast shifts, excellent efficiency, and remarkable reliability. Used across BMW's entire range from 1 Series to 7 Series. Even better with regular fluid services. The 8HP70/75 handles V8 and V12 torque.
Known Issues1
medium Mechatronic Sleeve Leak (Early Production) Occasional (~10%)
Early production 8HP units can develop a transmission fluid leak from the mechatronic sleeve connector.
Typical Mileage
80,000–150,000 km
Est. Repair Cost
€200–€500
DIY Friendly
✗ Specialist
Fluid leakLow fluid warningShifting hesitation
Wear Items
Transmission Fluid & Filter Every 80,000–100,000 km
NewReplace
Replacement Cost€300–€600
Wear Factor40%
Fluid TypeZF Lifeguard 8
Service IntervalEvery 80,000–100,000 km