Removing E-Box

WARNING: This page is about a different variant/trim than selected.

WARNING: Incorrect handling of high-voltage components

Electric shock
Short circuit
Fire
Explosion
1. → Only appropriately trained and authorised persons are permitted to work on high-voltage vehicles and components.
2. → Required qualification: High voltage technician or high voltage expert.
3. → Observe national requirements and legislation for this work.
4. → Always use insulated tools, e.g. > VAS 6883 - Insulated Tool Set when working on these components.
5. → Observe general warning notes for working on the high-voltage system.
6. → > WM, 2X00IN GENERAL WARNING NOTES FOR WORKING ON THE HIGH-VOLTAGE SYSTEM

WARNING: Hot fluid

Danger of scalding
1. → Avoid contact with hot fluid.
2. → Wear personal protective gear.

Information

Observe the following specifications for all the work described:

Country-specific, national, legal and official regulations,
Local restrictions and export restrictions,
Manufacturer specifications from component and vehicle manufacturers,
Component-specific specifications.

These strict specifications apply in particular to:

Storage, installation and removal, transport and disposal of vehicles, assemblies, operating materials and auxiliary materials,
Handling defective and potentially hazardous vehicles as well as assemblies,
Handling battery electric vehicles and high-voltage components.

Consider relevant and qualified sources of information such as local authorities, competent importer, associations and specialised websites for this purpose. Only deliver items to be disposed of to authorised reception points.

These regulations to be complied with have to be checked, observed and, if necessary, documented by the person responsible for the vehicle for all life phases and work.

Perform tests for verifying absence of electric charge and insulation resistance tests using > VAS 6558A - high-voltage testing module , > VAS 6558/9-7 - HV test adapter HVR 40 and > 9900 - PIWIS Tester 3 .
> 270803 TESTING HIGH-VOLTAGE BATTERY
Disconnect electric plug connection -1- to EBox -2- and remove it.

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Electric plug connection
Unscrew -1- bolts and remove bracket -2- .

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Bolts
Remove coolant hose -2- .

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Coolant hose
1. 4.1 Open spring band clamp -1- using > VAS 6890 - spring band clamp pliers and pull off coolant hose -2- .
2. 4.2 Catch emerging coolant.
3. 4.3 Close off opening using a suitable stopper.

Remove E-box.

Information

Replace micro-self-locking screw.

5.1 Unscrew fastening screws -1- using > VAS 691 003A - TORX® high-voltage tool set . The exposed threads must be cleaned.

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Fastening screws E-box

5.2 > 9924 - Centring pins-1- must now be screwed into the exposed threads.

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Centring pins on E-box

5.3 Unscrew fastening screws -1- .

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E-box

5.4 Carefully disconnect E-box from the high-voltage battery.