82.05 - Installation instructions: Infrared interior protection/tow away protection (code 882) - General, Installing parts, Function check, Wiring harnesses, Wiring diagram, Parts ordering - Model 140 (EDW installed)

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Installation instructions

Infrared interior protection/
anti-tow-away protection (code 882) 82.5

Model 140 (with EDW already installed)

The interior protection/anti-tow-away protection is an extension of the existing EDW providing additional protection against theft, e.g. break-ins via the side windows or change in level or wheel theft.

P82-7331-57

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The installation described in the following is required in full for vehicles up to 01/94. The anti-tow-away protection wiring harnesses and interior protection/EDW switch are already pre-equipped on vehicles as of 01/94 with recognized standard production immobilizer. Only the anti-tow-away control unit and anti-tow-away protection/status indicator switch have to be fitted. The anti-theft warning (EDW) control unit does not have to be replaced. The cable bridge (black cable) connector on the interior central locking system control switch must be disconnected. The work described in B and C is not required on the pre-equipped vehicles.

Vehicles as of approx. 12/94 have a programmable EDW control unit which has to be programmed by means of the hand-held tester when the anti-tow-away protection is retrofitted.

For programming, refer to Diagnosis Manual Body 13.2.  31

Otherwise installation is as on vehicles as of 01/94.

Special tools

124 589 19 21 00

140 589 14 63 00

Commercially available tools or testers, MB testers (refer to workshop equipment manual)

The installation instructions are divided up into the following sections:

A. General work

B. Installing anti-tow-away protection wiring harnesses (vehicles before 01/94)

C. Installing anti-tow-away protection, disarming switch

D. Installing transmitter and receiver units

E. Installing infrared interior protection

F. Function check

G. Wiring harnesses

H. Electrical wiring diagram

I. Parts ordering note

A. General work

B. Installing wiring harnesses anti-tow-away protection (before 01/94)

1 Overlay wiring harnesses with loom and route as shown in the drawing.

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P82-7333-13

2 Open connector (4) of switch wiring harness (1), remove purple cable from socket no. 2 and tie back.

Remove the black/green cable (5) of status indicator from socket no. 4 of interior central locking system control switch and insert in the free assignment of connector (4). Close connector and clip into the switch block at the 2nd position in the front left of the switch blocks.

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3 Connect gray/blue cable of the auxiliary wiring harness (1) to support point, controlled lighting (X6).

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Connect brown ground cable to ground point, center console (W12).

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4 Route switch wiring harness (1) along existing cables from the switch block to the EDW control unit N26 via the center console and in front passenger footwell in front of the front passenger seat cross member and from there into the trunk.

Model 140 coupé

Cut out entry to cable duct

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5 Route anti-tow-away protection auxiliary wiring harness (2) under the rear seat on the right next to the pneumatic control unit pump through the rear wall cable duct along existing cables to the EDW control unit N26 and fix with felt strips.

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6 Contact term. 30 in rear fuse box F4 below B.

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7 Open connector from EDW control unit N26, insert cable (no. 10) from auxiliary wiring harness (1) and cable (no. 9) and (no. 29) from anti-tow-away protection auxiliary wiring harness (2) with the correct numbers in the connector. Insulate free cable (no. 8) from the auxiliary wiring harness and tie back.

8 Replace EDW control unit N26 (if part no.

140 820 53 26 not installed).

Contact connector with EDW control unit N26.

C. Installing anti-tow-away protection, disarming switch

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1 Attach disarming switch (S85/2) to switch block, mill out or replace center console cover.

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2 Trace drilling holes (8), 6 mm dia. hole and 7 mm dia. hole for anti-tow-away protection in accordance with the template. Drill holes (on vehicles before 01/94 only)

3 Contact wiring harness (2) with anti-tow-away protection.

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4 Fasten anti-tow-away protection N27 with nut (12).

D. Installing infrared transmitter and receiver units

1 Templates

Template model 140 coupé

Copy and cut out template (13) for sawing out the cutouts in the left headlining (the right is a mirror image)

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Template model 140 saloon

Copy and cut out template for sawing out the cutouts in the left B-pillar trim (the right is a mirror image)

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Work steps 2 to 4 model 140 saloon

2 To avoid damage, unstick upper area of the B-pillar trim (14).

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3 Place template which has been cut out on flush with the outer edges (arrows) of B-pillar trim (14) and trace cutout on the adhesive tape.

4 Drill two 8 mm dia. holes and saw out remaining material in the marked cutout, using a compressed-air high-performance fret saw, for example.

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Work steps 5 to 9 model 140 coupé

5 Carefully detach upholstery cloth (15) of the C-pillar in the area of the perforation attached to the back

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6 Cut out C-pillar trim along the perforation (if two perforations are present, select the larger cutout).

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7 Cut out upholstery cloth and stick to the C-pillar.

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8 Place template (13) on headlining in accordance with the template. Trace cutout.

9 Cut out the marked area of headlining with a sharp knife.

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The tapped holes must be freely accessible for fastening.

10 Fasten transmitter and receiver unit (A26/4, A26/5), interior protection with 2 screws.

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There must be clearance between the transmitter and receiver unit and the headlining.

11 Loosen headlining at the side and back.

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When routing the wiring harness, only remove the retaining clips in the cutout of the make-up mirror on one side to avoid kinking the headlining.

E. Installing infrared interior protection

1 Cable routing

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Infrared interior protection wiring harness and a section of the anti-theft warning system (EDW) wiring harness

P82-5487-13

Model 140 saloon

2 Push slotted corrugated hose (6) onto infrared interior protection wiring harness (5).

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3 Route infrared interior protection wiring harness corresponding to the color markings in the frame-floor unit and along the cross member below the rear seat bench or individual rear seats (section of wiring harness with slotted corrugated hose). If applicable, insert excessive length of the wiring harness in the left duct of the frame-floor unit by forming a loop.

Model 140 saloon

4 Fasten corrugated hose on cross member under rear seat bench or under rear seats with existing cable straps. Secure cables at the outlet ends of slotted corrugated hose with insulating tape to prevent them moving.

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5 Route infrared interior protection wiring harness (5) on the right roof frame forwards towards the cutout of the B-pillar. Fasten infrared interior protection wiring harness (5) with clips (12). Route the infrared interior protection wiring harness on the left side as a mirror image.

Model 140 coupé

Using clips (12) and sheet-metal clips, route infrared interior protection wiring harness (5) along existing cables and fasten.

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6 Route infrared interior protection wiring harness (5, yellow cable color marking) from the right rear area along existing wiring harnesses into the trunk and fasten.

7 Lace tied-back connectors or connect 10-pin connectors to the infrared interior protection control unit (N26/3).

8 Install infrared interior protection control unit (N26/3) using sheet-metal screw and sheet-metal nut.

9 Connect infrared transmitter and receiver unit (IR), interior protection (A26/4, A26/5) and fasten with two screws in each case.

10 Attach trim. Check fit. Check clearance around sensor. Rework cutout in the trim, if necessary. Attach sensor cover.

D. Function check

1 Check anti-tow-away protection.

Read out and erase fault memory after function check is complete

2 Checking interior protection.

Read out and erase fault memory after function check is complete

If there is no text in the operating instructions:

Copy page, cut out insert pages and incorporate in the corresponding chapters of the operating instructions.

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Switch on center console

1 Switch off anti-tow-away protection

2 Indicator lamp

3 Switch off interior protection

Anti-tow-away protection

The alarm is triggered if the vehicle is towed away when the anti-theft warning system is operational.

Switching off anti-tow-away protection

If the vehicle is to be transported or loaded, switch off anti-tow-away protection to prevent a false alarm.

Remove key from the steering lock, press top of switch (1). The indicator lamp (2) comes on briefly.

Locking vehicle centrally from outside.

The anti-tow-away protection remains switched off until the next time the vehicle is locked centrally from outside.

Interior protection

The interior protection is operational after approx. 60 seconds if the vehicle has been locked centrally from outside.

The alarm is triggered if the side windows are broken and the interior has been reached into.

Notes:

Close the side windows and tilting/sliding roof.

Do not let any objects (for example, mascots or coat hangers) be suspended on the interior mirror or on the handles on the roof - they can trigger a false alarm.

Switching off interior protection

If people or animals are to remain in the locked vehicle, the interior protection is to be switched off to prevent a false alarm.

Remove key from the steering lock, press bottom of switch (3). The indicator lamp (2) flashes briefly.

Lock vehicle centrally from outside.

The interior protection remains switched off until the next time the vehicle is locked centrally from outside.

G. Wiring harnesses

1 Disarming switch and anti-tow-away protection wiring harnesses

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Disarming switch and anti-tow-away protection wiring harnesses

2 Interior protection wiring harness

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H. Electrical wiring diagram

For electrical wiring diagram, refer to Volume 3, Electrical wiring diagram, model 140, group 82.

I. Parts ordering note

The parts required for installation can be obtained from the following parts documentation:

1) Also order on vehicles before 01/94.
Anti-theft warning system (EDW) control unit, part no. 140 820 53 26.
Anti-tow-away protection wiring harness, part no. 140 820 79 15.
ASS/IRS/EDW switch wiring harness, part no. 140 820 80 15.

The following are also to be ordered depending on the model and equipment: