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Condition Value
expand_moreAir intake system
expand_moreIntake manifold
M6 7.38 lbf⋅ft
M7 11.06 lbf⋅ft
M8 16.23 lbf⋅ft
expand_moreAuxiliary assemblies
expand_moreAuxiliary drive belt deflection pulley
M10 28.03 lbf⋅ft
expand_moreAll other modifications
M10 33.19 lbf⋅ft
M8 16.23 lbf⋅ft
expand_moreAuxiliary drive belt tensioner
expand_moreAlternator
M8 20.65 lbf⋅ft
M10 33.19 lbf⋅ft
M10 28.03 lbf⋅ft
expand_moreAll other modifications
M10 33.19 lbf⋅ft
expand_moreAir-conditioning compressor
M10 28.03 lbf⋅ft
expand_moreAlternator
M10 28.03 lbf⋅ft
expand_moreGenerator bracket
M10 × 35 screws 28.03 lbf⋅ft
M6 × 25 screws 7.38 lbf⋅ft
M8 × 35 screws 14.01 lbf⋅ft
expand_moreCarburetion
expand_moreExhaust gas return cooler
expand_moreAt the cylinder head
M8 14.01 lbf⋅ft
M6 7.38 lbf⋅ft
expand_moreAll other modifications
M8 14.01 lbf⋅ft
expand_moreExhaust gas return valve
M6 7.38 lbf⋅ft
Exhaust recirculation pipe 25.81 lbf⋅ft
expand_moreFuel-distributing pipe
expand_moreM6
First stage 3.69 lbf⋅ft
Replace screws.
Second stage 100°
expand_moreAll other modifications
M8 14.01 lbf⋅ft
expand_moreHigh-pressure line
All BMW gasoline straight-3 1.5 L B38 A15 A engines 24.34 lbf⋅ft
All other modifications 17.7 lbf⋅ft
expand_moreHigh-pressure pump
M6 8.85 lbf⋅ft
Tighten bolts uniformly in several passes.
expand_moreAll other modifications
M8 14.01 lbf⋅ft
expand_moreHigh-pressure pump pulley
M12 47.94 lbf⋅ft
Replace screws.
expand_moreInjection nozzle (injector)
First stage 5.9 lbf⋅ft
Second stage 105135°
expand_moreCharging
expand_moreTurbo charger
expand_moreOn exhaust manifold
Clamps 9.59 lbf⋅ft
expand_moreTurbocharger bracket
M8 16.23 lbf⋅ft
expand_moreTurbocharger oil feed line
Turbocharger oil return line 7.38 lbf⋅ft
expand_moreCooling system
expand_moreCoolant drain plug
expand_moreM14 × 1,5 screws
Locking screws 22.13 lbf⋅ft
expand_moreCoolant pump
M10 28.03 lbf⋅ft
Use sealant.
M6 7.38 lbf⋅ft
Use sealant.
M8 14.01 lbf⋅ft
Use sealant.
M6 7.38 lbf⋅ft
expand_moreM6 × 30 screws
First stage 2.21 lbf⋅ft
Second stage 90°
M8 × 35 screws 14.01 lbf⋅ft
expand_moreAll other modifications
M6 × 30 screws 7.38 lbf⋅ft
M8 × 35 screws 14.75 lbf⋅ft
expand_moreCoolant thermostat housing
expand_more214 d with diesel straight-3 1.5 L 94 HP engine (2015.3–)
M6 5.9 lbf⋅ft
Fan wheel 7.38 lbf⋅ft
Viscous fan clutch 29.5 lbf⋅ft
Left-hand thread
expand_moreCylinder head
expand_moreCamshaft bearing
M6 × 31 screws 7.38 lbf⋅ft
Tighten gradually and alternately from inside to outside.
expand_moreCylinder head screws
Figure 1. Cylinder head, Cylinder head screws, BMW diesel straight-3 1.5 L B37 C15 A.
Figure 1. Cylinder head, Cylinder head screws, BMW diesel straight-3 1.5 L B37 C15 A.
First stage 36.88 lbf⋅ft
Replace screws. See figure 1.
Second stage 51.63 lbf⋅ft
Third stage loosen by 180°
Fourth stage 36.88 lbf⋅ft
Fifth stage 120°
Sixth stage 120°
expand_moreM8 × 40 screws
Seventh stage 16.23 lbf⋅ft
expand_moreScrews 1 – 8
Figure 2. Cylinder head, Cylinder head screws, BMW gasoline straight-3 1.5 L B38 A15 A, Screws 1 – 8.
Figure 2. Cylinder head, Cylinder head screws, BMW gasoline straight-3 1.5 L B38 A15 A, Screws 1 – 8.
First stage 22.13 lbf⋅ft
Replace screws. See figure 2.
Second stage 90°
Third stage 180°
expand_moreScrew 9
Fourth stage 14.75 lbf⋅ft
expand_moreAll other modifications
expand_moreM12 × 1,5 screws
Figure 3. Cylinder head, Cylinder head screws, All other modifications, M12 × 1,5 screws.
Figure 3. Cylinder head, Cylinder head screws, All other modifications, M12 × 1,5 screws.
First stage 36.88 lbf⋅ft
Replace screws. See figure 3.
Second stage 51.63 lbf⋅ft
Third stage loosen by 180°
Fourth stage 36.88 lbf⋅ft
Fifth stage 120°
Sixth stage 120°
M8 × 40 screws 16.23 lbf⋅ft
expand_moreRocker arm housing
M7 11.06 lbf⋅ft
expand_moreRocker bridge
expand_moreAt the cylinder head
M7 11.06 lbf⋅ft
expand_moreValve cover
Figure 4. Cylinder head, Valve cover.
Figure 4. Cylinder head, Valve cover.
M6 7.38 lbf⋅ft
See figure 4.
expand_moreEngine block
expand_moreBalance shaft gear wheel
expand_moreM10
First stage 14.75 lbf⋅ft
Second stage 60°
M10 36.88 lbf⋅ft
Replace screws.
expand_moreAll other modifications
M12 51.63 lbf⋅ft
Replace screws.
expand_moreBalance shaft module
expand_moreM12
First stage 29.5 lbf⋅ft
Second stage 70°
expand_moreConnecting rod bearing
expand_moreM9
First stage 3.69 lbf⋅ft
Replace screws.
Second stage 14.75 lbf⋅ft
Third stage 70°
Fourth stage 70°
expand_moreAll other modifications
expand_moreM9
First stage 3.69 lbf⋅ft
Replace screws.
Second stage 14.75 lbf⋅ft
Third stage 70°
expand_moreCrankshaft pulley
expand_moreM10 × 65 screws
First stage 29.5 lbf⋅ft
Replace screws.
Second stage 120°
expand_moreFlywheel
M12 × 1,5 screws 88.51 lbf⋅ft
Use new screws and snug them down crosswise.
expand_moreMain bearing
expand_moreM10 × 85 screws
Figure 5. Engine block, Main bearing, BMW diesel straight-3 1.5 L B37 C15 A, M10 × 85 screws.
Figure 5. Engine block, Main bearing, BMW diesel straight-3 1.5 L B37 C15 A, M10 × 85 screws.
First stage Tighten by hand
Replace screws. See figure 5.
Second stage 18.44 lbf⋅ft
Third stage 36.88 lbf⋅ft
Fourth stage 60°
Fifth stage 60°
First stage Screw in screw(s) by hand.
Second stage 18.44 lbf⋅ft
Replace screws.
Third stage 60°
Fourth stage 60°
expand_moreAll other modifications
First stage Tighten by hand
Second stage 18.44 lbf⋅ft
Replace screws.
Third stage 36.88 lbf⋅ft
Fourth stage 60°
Fifth stage 60°
expand_moreVibration damper
expand_moreM10 × 65 screws
First stage 29.5 lbf⋅ft
Replace screws.
Second stage 120°
expand_moreEngine control
expand_moreCamshaft timing chain guide rail
expand_moreBearing screws
M8 14.75 lbf⋅ft
Replace bearing bolt.
expand_moreCamshaft timing chain tensioner
First stage 14.75 lbf⋅ft
Second stage 25°
expand_moreChain tensioner
M6 × 22 screws 6.64 lbf⋅ft
expand_moreControl drive chain guide rail
expand_moreBearing screws
M8 14.75 lbf⋅ft
Replace screws.
expand_moreControl drive chain tensioner
expand_moreOn the engine block
M8 7.38 lbf⋅ft
expand_moreControl drive chain tensioning rail
expand_moreBearing screws
M8 14.75 lbf⋅ft
Replace bearing bolt.
expand_moreControl drive sprocket wheel
expand_moreOn the engine block
M12 79.66 lbf⋅ft
Replace screws.
expand_moreControl drive timing chain slip rail
expand_moreBearing screws
M8 14.75 lbf⋅ft
Replace bearing bolt.
expand_moreControl unit for intake valve timing
M6 7.38 lbf⋅ft
expand_moreEccentric shaft for intake valve timing
expand_moreAt the cylinder head
M6 7.38 lbf⋅ft
expand_moreInlet camshaft wheel
M7 11.06 lbf⋅ft
Replace screws.
expand_moreM12
First stage 22.13 lbf⋅ft
Second stage 36.88 lbf⋅ft
Third stage 65°
expand_moreM22
First stage 22.13 lbf⋅ft
Second stage 36.88 lbf⋅ft
Third stage 16°
expand_moreAll other modifications
M7 12.54 lbf⋅ft
Replace screws.
expand_moreOutlet camshaft wheel
M7 11.06 lbf⋅ft
Replace screws.
expand_moreM12
First stage 22.13 lbf⋅ft
Second stage 36.88 lbf⋅ft
Third stage 65°
expand_moreM22
First stage 22.13 lbf⋅ft
Second stage 36.88 lbf⋅ft
Third stage 16°
expand_moreAll other modifications
M7 12.54 lbf⋅ft
Replace screws.
expand_moreTiming case
Locking screws 14.75 lbf⋅ft
expand_moreTiming case cover
M6 7.38 lbf⋅ft
Timing case cover front 7.38 lbf⋅ft
expand_moreTiming case cover rear
expand_moreM6
First stage 5.9 lbf⋅ft
Replace bolts.
Second stage 90°
expand_moreEngine lubrication
Oil cooler 7.38 lbf⋅ft
Oil drain plug 18.44 lbf⋅ft
Replace sealing rings.
expand_moreOil filter
Oil filter cover 18.44 lbf⋅ft
Replace the O ring.
Oil filter drain plug 3.69 lbf⋅ft
Replace the O ring.
expand_moreAll other modifications
expand_moreOil filter cover
First stage 18.44 lbf⋅ft
Slightly oil sealing lips.
Second stage 180° detach.
Third stage 18.44 lbf⋅ft
expand_moreOil filter housing
First stage 5.9 lbf⋅ft
Second stage 5.9 lbf⋅ft
Control tensioner
Oil filter drain plug 3.69 lbf⋅ft
Replace screws.
expand_moreOnto crankcase (M6)
First stage 5.9 lbf⋅ft
Second stage 5.9 lbf⋅ft
expand_moreAll other modifications
Oil filter drain plug 3.69 lbf⋅ft
Replace bolts.
expand_moreOil lines
On the engine block 7.38 lbf⋅ft
expand_moreOil pump
M8 14.75 lbf⋅ft
M6 14.75 lbf⋅ft
expand_moreAll other modifications
M8 16.23 lbf⋅ft
expand_moreOil pump chain wheel
expand_moreM8
First stage 3.69 lbf⋅ft
Use new screw. (left-hand thread)
Second stage 90°
expand_moreAll other modifications
expand_moreM10
First stage 14.75 lbf⋅ft
Left-hand thread
Second stage 90°
expand_moreOil sump
M8 14.75 lbf⋅ft
expand_moreOnto crankcase
First stage 3.69 lbf⋅ft
Tighten screws crosswise.
Second stage 14.01 lbf⋅ft
expand_moreOnto crankcase (M8)
First stage 3.69 lbf⋅ft
Tighten screws crosswise.
Second stage 14.01 lbf⋅ft
expand_moreAll other modifications
M8 16.23 lbf⋅ft
expand_moreEngine management
Glow plugs 9.59 lbf⋅ft
expand_moreLambda sensor
M18 36.88 lbf⋅ft
expand_moreEngine mounting
expand_moreEngine bracket
expand_moreAt the subframe
M12 73.76 lbf⋅ft
expand_moreAt the cylinder head
M10 30.24 lbf⋅ft
expand_moreOn engine sump
M12 73.76 lbf⋅ft
expand_moreEngine mounting
expand_moreScrews at the cylinder head (M10, class 10.9)
First stage 29.5 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreOn side member
M12 screws (class 10.9) 73.76 lbf⋅ft
expand_moreAll other modifications
expand_moreAt the cylinder head (M10)
First stage 29.5 lbf⋅ft
Use new screw.
Second stage 90°
expand_moreOn side member
M12 73.76 lbf⋅ft
expand_moreSubframe
M12 79.66 lbf⋅ft
M14 129.07 lbf⋅ft
Subframe stiffening plate 73.76 lbf⋅ft
expand_moreTorque arm
M12 screws (class 10.9) 73.76 lbf⋅ft
expand_moreTorque support bracket
M12 screws (class 10.9) 73.76 lbf⋅ft
expand_moreExhaust system
expand_moreCatalytic converter
Clamps 9.59 lbf⋅ft
expand_moreCatalytic converter bracket
M8 14.01 lbf⋅ft
Replace nuts.
expand_moreDiesel particulate filter
At the turbocharger 11.06 lbf⋅ft
Use new parts.
expand_moreExhaust manifold
M6 7.38 lbf⋅ft
Use hot screw paste
M7 11.06 lbf⋅ft
Use hot screw paste
M8 16.96 lbf⋅ft
Use hot screw paste
expand_moreAt the cylinder head with turbo charger (M7)
First stage 7.38 lbf⋅ft
Replace nuts.
Second stage 7.38 lbf⋅ft
Third stage 11.8 lbf⋅ft
Fourth stage 11.8 lbf⋅ft
Fifth stage 11.8 lbf⋅ft
expand_moreAll other modifications
expand_moreM7
First stage 8.11 lbf⋅ft
Replace nuts.
Second stage 9.59 lbf⋅ft
expand_moreExhaust manifold heat shields
M8 14.01 lbf⋅ft
All other modifications 7.38 lbf⋅ft
expand_moreExhaust pipe
expand_moreOn diesel particulate filter
Clamps 19.18 lbf⋅ft
expand_moreExhaust pipe bracket
M8 14.75 lbf⋅ft
expand_moreExhaust pipe rear
Clamps 19.18 lbf⋅ft
expand_moreAll other modifications
Clamps 33.19 lbf⋅ft
Exhaust system middle heat protection plate 5.97.38 lbf⋅ft
Particle filter bracket 14.01 lbf⋅ft
expand_moreIgnition system
Spark plugs 14.7516.96 lbf⋅ft
expand_moreStart system
expand_moreStarter
M8 14.01 lbf⋅ft

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2023 BMW 2 Series Gran Tourer user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.

Before doing any DIY service please check your insurance policy and BMW warranty policy for your region. In some regions DIY service may invalidate your warranty.

Conquer your fears and never give up!

DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow BMW 2 Series Gran Tourer service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.

Doing basic service for your 2023 BMW 2 Series Gran Tourer you're not only saving money, but also also improving your technical skills and learning something new.

Units:
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