Install E-Box

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WARNING: Incorrect handling of high-voltage components

Electric shock
Short circuit
Fire
Explosion
→ Only appropriately trained and authorized persons may work on high-voltage vehicles and components.

→ Required qualification: High voltage technician or high voltage expert.

→ Observe national requirements and legislation for this work.

→ Always use insulated tools, such as an > VAS 6883 - insulated tool set when working on these parts.

→ Observe general warning notices for working on the high-voltage system.

> WM, 2X00IN GENERAL WARNING NOTES FOR WORKING ON THE HIGH-VOLTAGE SYSTEM

Install E-box.

1.1 Replace seals.
1.2 Carefully position E-box.

1.3 Screw in fastening screw -4- .

Replace micro-self-locking screw.

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Loosening E-box

Information

Immediately after removing a centring pin, screw in and fit the fastening screw.

1.4 > 9924 - Centring pins-3- must now be unscrewed.

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Centring pins on E-box

1.5 Screw in -1- fastening screws.

Replace micro-self-locking screws.

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Fastening screws on E-box

1.6 Fit fastening screws securing E-box to high-voltage battery and tighten to > Tightening torque 8 Nm (6 ftlb.) .

Perform leak test on the battery housing using > 9925 - leak-tightness test set , > T40349 - seal plug , > T40354 - seal plug and > VAS 6213 - Hand vacuum pump .
> 270801 PERFORMING LEAK TEST ON HIGH-VOLTAGE BATTERY

Fit pressure accumulator and load distributor plate.

3.1 Position load distributor plate together with lower bar on the high-voltage battery.
3.2 Position retaining frame together with the pressure accumulator on the high-voltage battery.

3.3 Fit fastening screws -6- and tighten to > Tightening torque 8 Nm (6 ftlb.) .

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Fastening screws on retaining frame, bottom

3.4 Fit fastening screws -5- and tighten to > Tightening torque 8 Nm (6 ftlb.) .

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Fastening screws on pressure accumulator, bottom

Secure retaining frame at the top.

4.1 Fit fastening screws -4- and tighten to > Tightening torque 8 Nm (6 ftlb.) .

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Fastening screws on retaining frame

4.2 Screw in fastening screws -A to D and 1 to 12- by a couple of turns.
4.3 Fit fastening screws -A, B, C and D- in this sequence and tighten to > Tightening torque 28 Nm (21 ftlb.) +/- 2 Nm (1.5 ftlb.) .
4.4 Fit fastening screws (M8 x 30) -1, 2, 3 and 4- in this sequence and tighten to > Tightening torque 20 Nm (15 ftlb.) .
4.5 Fit fastening screws (M8 x 18) -5, 6, 7, 8, 9, 10, 11 and 12- in this sequence and tighten to > Tightening torque 20 Nm (15 ftlb.) .

Fig 1: Battery Console At Top Of HV Battery Screws Tightening Sequence
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Tightening sequence for battery console at top of HV battery