17 00 005 Draining and adding coolant (N52K)
Necessary preliminary tasks
- Remove underbody protection, see «51 47 490 REMOVING AND INSTALLING / REPLACING FRONT UNDERBODY PROTECTION»(ref-264509-S34727723992007091500000).
| WARNING | Danger of scalding! Only carry out work on cooling system after engine has cooled down. |
Recycling
Catch and dispose of drained coolant.
Observe country-specific waste-disposal regulations.
Open cap (1) on coolant expansion tank.
Scheme 1
E83
Open drain plug (1) on radiator.
Scheme 2
Open vent screw (1).
Scheme 3
Use only recommended coolant.
Operating Fluids MG17.
Note. Adhere to the following work sequence when adding coolant.
- Switch ignition on
- Seat heating to maximum temperature and fan to low speed (heater valves are opened and auxiliary water pump starts up).
- Slowly fill expansion tank with coolant.
- Close vent screw after bubble-free coolant emerges or after filling up to max. cold fill level.
Vent cooling system.
17 21 500 Flushing oil cooler with lines (automatic transmission)
Special tools required
See 17 COOLING SYSTEM .
- 17 2 018
- 17 2 019
Note. Carry out the work steps listed when: Fitting a new or replacement transmission Flushing can only be carried out with the automatic transmission removed.
Procedure
Automatic transmission removed.
Connect appropriate adapters (see description below) to oil lines exiting from automatic transmission.
Connect the connecting line 17 2 019 from the oil collection unit with the quick-release coupling.
Connect drain line 17 2 018 using quick-release coupling.
Feed open end of drain line into a suitable collection container.
Using oil collection unit, flush approx. 1 liter of transmission fluid through oil lines and oil cooler.
Reposition quick-release couplings.
Flush oil lines/oil cooler in opposite direction with approx. 1 liter of transmission fluid.
Disconnect quick-release couplings, remove adapters.
Note. Dispose of flushing oil properly; do not under any circumstances reuse it.
Arrangement of flushing device for transmissions A5S 310Z, A5S 560Z, A5S 360R/390R, A4S 200R, A5S 325Z, GA6HP26Z
Scheme 4
Arrangement of flushing device for transmission A4S 310R
Scheme 5
Arrangement of flushing device for transmission A4S 300J
Scheme 6
Arrangement of flushing device for transmission A5S 440Z
Scheme 7
Special tools required
See 17 COOLING SYSTEM .
- 17 2 018
- 17 2 019
Note. Carry out the work steps listed when: Fitting a new or replacement transmission Flushing can only be carried out with the automatic transmission removed.
Procedure
Automatic transmission removed.
Connect appropriate adapters (see description below) to oil lines exiting from automatic transmission.
Connect the connecting line 17 2 019 from the oil collection unit with the quick-release coupling.
Connect drain line 17 2 018 using quick-release coupling.
Feed open end of drain line into a suitable collection container.
Using oil collection unit, flush approx. 1 liter of transmission fluid through oil lines and oil cooler.
Reposition quick-release couplings.
Flush oil lines/oil cooler in opposite direction with approx. 1 liter of transmission fluid.
Disconnect quick-release couplings, remove adapters.
Note. Dispose of flushing oil properly; do not under any circumstances reuse it.
Arrangement of flushing device for transmissions A5S 310Z, A5S 560Z, A5S 360R/390R, A4S 200R, A5S 325Z, GA6HP26Z
Scheme 8
Arrangement of flushing device for transmission A4S 310R
Scheme 9
Arrangement of flushing device for transmission A4S 300J
Scheme 10
Arrangement of flushing device for transmission A5S 440Z
