LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 2025 >> 230i >> Repair and Diagnosis >> External Pages >> Different car >> Section 213 (Variable Camshaft Timing & Variable Valve Lift Control Systems, Engine Oil Pump -- Repair M5 (F90)) >> 11 36 Variable Camshaft Timing Control >> 11 36 130 Removing and installing/replacing both VANOS central valves, left (M5 2018-2022) >> Replacing both left VANOS central valves

Replacing both left VANOS central valves

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2023 BMW M5, 2022 BMW M5, 2021 BMW M5, 2020 BMW M5, and 2019 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Hot fluids. 
Risk of scalding! 
  • Conduct all work in the vehicle wearing appropriate personal protective equipment only.
NOTE: TECHNICAL INFORMATION 
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
NOTE: TECHNICAL INFORMATION 
Grease the threads of new oxygen sensors thinly and evenly.
For oxygen sensors that are reused, the following should be observed:
Thinly and evenly grease the oxygen sensor on the thread only. Do not clean the part of the oxygen sensor that does not protrude into the exhaust line (sensor ceramics) and do not grease.
For additional information see: 11 00... OVERVIEW OF CONSUMABLES IN APPLICABLE BMW PARTS CATALOGUE .

Preliminary work 

Remove the sealing cap on the cylinder head of the cylinder bank 2 

G14253824Courtesy of BMW OF NORTH AMERICA, INC.

Moving the crankshaft to the installation position to adjust the timings 

G14253531Courtesy of BMW OF NORTH AMERICA, INC.

Check the VANOS adjuster of cylinder bank 2 

Check 

G14253826Courtesy of BMW OF NORTH AMERICA, INC.

Result 

» Camshafts are connected to the VANOS adjusters (2) with frictional connections.

Measure

Result 

» If no frictional connection exists, replace the affected VANOS adjuster.

Measure

Measure

Relaxing chain tensioner on bank 2 for checking or setting timing 

NOTE: RISK OF DAMAGE 
Damage to timing chain or timing chain drive. 
Turning the engine without chain tensioner or special tool can result in damage to the timing chain and timing chain drive. 
  • Always turn the engine with the chain tensioner or the special tool.
G14253457Courtesy of BMW OF NORTH AMERICA, INC.

Slackening the hydraulic chain tensioner of cylinder bank 2 

NOTE: RISK OF DAMAGE 
Damage to timing chain or timing chain drive. 
Turning the engine without chain tensioner or special tool can result in damage to the timing chain and timing chain drive. 
  • Always turn the engine with the chain tensioner or the special tool.
G14253551Courtesy of BMW OF NORTH AMERICA, INC.

G14253440Courtesy of BMW OF NORTH AMERICA, INC.

Removing hydraulic chain tensioner of cylinder bank 2 

NOTE: RISK OF DAMAGE 
Damage to timing chain or timing chain drive. 
Turning the engine without chain tensioner or special tool can result in damage to the timing chain and timing chain drive. 
  • Always turn the engine with the chain tensioner or the special tool.
G14253556Courtesy of BMW OF NORTH AMERICA, INC.

Preloading the timing chain of cylinder bank 2 

NOTE: RISK OF DAMAGE 
Damage to timing chain or timing chain drive. 
Turning the engine without chain tensioner or special tool can result in damage to the timing chain and timing chain drive. 
  • Always turn the engine with the chain tensioner or the special tool.
TIGHTENING TORQUE SPECIFICATIONS

Preload timing chain
tightening torque  0.6 Nm
G14253443Courtesy of BMW OF NORTH AMERICA, INC.

Fixing the engine in the installation position on cylinder 1 (set valve timings) 

G14253578Courtesy of BMW OF NORTH AMERICA, INC.

Checking the preload of the timing chain for cylinder bank 2 

TIGHTENING TORQUE SPECIFICATIONS

Preload timing chain
tightening torque  0.6 Nm
G14253443Courtesy of BMW OF NORTH AMERICA, INC.

TIGHTENING TORQUE SPECIFICATIONS

VANOS central valve initial torque
VANOS central valve Joining torque  5 Nm
G14253839Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

VANOS central valve second tightening
VANOS central valve Joining torque  30 Nm
Joining torque  50 Nm
G14253839Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

VANOS central valve third tightening
VANOS central valve Angle of rotation  30°
G14253585Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

VANOS central valve third tightening
VANOS central valve Angle of rotation  30°
G14253585Courtesy of BMW OF NORTH AMERICA, INC.
G14253446Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Description is for right component only. The procedure on the left side is identical.
NOTE: To provide a better overview: Schematic diagram with partially hidden components.
G14253435Courtesy of BMW OF NORTH AMERICA, INC.

Fixing the engine in the installation position on cylinder 1 (set valve timings) 

Installing the special tool to secure the camshafts of cylinder bank 2 

Check 

G14253447Courtesy of BMW OF NORTH AMERICA, INC.

Result 

» The camshafts can be fastened.

Measure

Result 

» The camshafts cannot be fastened.

Measure

Removing special tool to pretension timing chain on cylinder bank 2 

NOTE: RISK OF DAMAGE 
Damage to timing chain or timing chain drive. 
Turning the engine without chain tensioner or special tool can result in damage to the timing chain and timing chain drive. 
  • Always turn the engine with the chain tensioner or the special tool.
G14253442Courtesy of BMW OF NORTH AMERICA, INC.

G14253446Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Description is for right component only. The procedure on the left side is identical.
NOTE: To provide a better overview: Schematic diagram with partially hidden components.
G14253435Courtesy of BMW OF NORTH AMERICA, INC.

Remove the special tools to disconnect the crankshaft 

G14253444Courtesy of BMW OF NORTH AMERICA, INC.

Removing special tool for fixing camshafts in position on bank 2 

G14253447Courtesy of BMW OF NORTH AMERICA, INC.

G14253531Courtesy of BMW OF NORTH AMERICA, INC.

Fixing the engine in the installation position on cylinder 1 (set valve timings) 

Check 

G14253447Courtesy of BMW OF NORTH AMERICA, INC.

Result 

» The camshafts can be fastened.

Measure

Result 

» The camshafts cannot be fastened.

Measure

Installing the hydraulic chain tensioner of cylinder bank 2 

NOTE: RISK OF DAMAGE 
Damage to timing chain or timing chain drive. 
Turning the engine without chain tensioner or special tool can result in damage to the timing chain and timing chain drive. 
  • Always turn the engine with the chain tensioner or the special tool.
TIGHTENING TORQUE SPECIFICATIONS

Chain tensioner to cylinder head
screw Tightening torque  13 Nm
G14253556Courtesy of BMW OF NORTH AMERICA, INC.
G14253551Courtesy of BMW OF NORTH AMERICA, INC.

Removing special tool for fixing camshafts in position on bank 2 

G14253447Courtesy of BMW OF NORTH AMERICA, INC.

Remove the special tools to disconnect the crankshaft 

G14253444Courtesy of BMW OF NORTH AMERICA, INC.

Installing the sealing cap on the cylinder head of cylinder bank 2 

TIGHTENING TORQUE SPECIFICATIONS

Sealing cap to cylinder head
M6x20 screw Tightening torque  9.5 Nm
G14253824Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work