LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 2000 >> 740iL >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> COOLING SYSTEM - REPAIR INSTRUCTIONS - 740i & 740iL - E38 >> Engine radiator with >> 17 11 100 Removing and installing/replacing coolant expansion tank

17 11 100 Removing and installing/replacing coolant expansion tank

WARNING: Danger of scalding! Open cap on coolant expansion tank only after engine has cooled down.

Drain coolant to below level of coolant expansion tank only.

Disconnect plug from level sensor.

Fig 1: Disconnecting Plug From Level Sensor
G03225429

Release clamp and detach hose from coolant expansion tank.

Fig 2: Releasing Clamp And Detaching Hose From Coolant Expansion Tank
G03225430

Open cap on coolant expansion tank.

Remove vent plug completely.

Fig 3: Opening Cap On Coolant Expansion Tank And Removing Vent Plug
G03225431

Unclip retaining cap.

Fig 4: Uncliping Retaining Cap
G03225432

Pull expansion tank towards rear and detach vent hose.

Fig 5: Pulling Expansion Tank Towards Rear And Detaching Vent Hose
G03225433

Lift coolant expansion tank out of lower retaining lugs.

Fig 6: Lifting Coolant Expansion Tank Out Of Lower Retaining
G03225434

Installation: 

The retaining lugs on the expansion tank must locate in the fan cowl.

Top up with coolant.

Vent cooling system and check for leaks. Refer to 17 00 039 BLEEDING COOLING SYSTEM AND CHECKING FOR WATER LEAKS  .