Electric drive unit - Oil change

AP08.00-S-0001EV

Electric drive unit - Oil change

03.03.2020

Model

447 with engine 780.7

1

Drain screw

2

Filling screw

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

 Caution

Risk of injury to skin and eyes due to handling of transmission oil. Health risk caused by swallowing transmission oil

Wear protective gloves, protective clothing and safety glasses.
Do not pour transmission oil into beverage bottles.

AS00.40-Z-0001-01A

Topical note

General information on vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system as well as personal protective equipment

AH00.00-Z-0300-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Drain off

1

Remove lower engine compartment paneling.

Engine 780.702



AR61.20-S-1105E

2

Clean area surrounding drain screw (1) and filling screw (2).

3

Remove filling screw (2).

4

Remove drain screw (1) and completely drain off transmission oil.

 To do so, place a suitable receptacle under drain screw (1).

5

Screw in new drain screw (1) with new sealing ring.


Install a new drain screw (1).
Otherwise, this may lead to leakage and consequential damage.

 Drain screw at housing

*BA08.10-N-1001-01EV

Pour in

6

Pour in transmission oil until it reaches the lower edge of the filler opening.

 Gear oil

*BF08.10-N-1001-02EV

7

Screw in new filling screw (2) with new sealing ring.


Replace filling screw (2).
Otherwise, this may lead to leakage and consequential damage.

 Filling screw to housing

*BA08.10-N-1002-01EV

8

Install lower engine compartment paneling.

Engine 780.702



AR61.20-S-1105E

9

Confirm conducted operations in maintenance booklet or in Digital Service Booklet (DSB).

 Electric motor

Number

Designation

Engine 780.701/702 in model 447

BA08.10-N-1001-01EV

Drain screw at housing

Nm

35

 Electric motor

Number

Designation

Engine 780.701/702 in model 447

BA08.10-N-1002-01EV

Filling screw to housing

Nm

35

 Complete transmission

Number

Designation

Model 447 with engine 780.701/702

BF08.10-N-1001-02EV

Gear oil

Filling capacity

Liter

1,0

Sheet

BB00.40-P-0236-24A