Contact Box Modification (58/66)
Publication date: 1993-11-01Reference number: 58/66
CONTACT BOX MODIFICATION
TECHNICAL SERVICE BULLETIN
Reference Number(s): 58/66, Date of Issue:
November 1993
CONTACT BOX MODIFICATION
Model(s): 1993 Mercedes-Benz 300 E, 300 CE, 300 TE; 1994-on Mercedes-Benz C 280, E 320, S 320, SL320
Group: 58 - Special Tools
Bulletin No.: MBNA 58/66
Date: November 1993
SERVICE INFORMATION
In order to use the existing contact box for the cruise control, idle speed control module (N4/3) in engine 104 HFM-SFI, the box must first be equipped with a retrofit kit, part no. 140 589 35 63 00. This retrofit kit includes installation instructions for a 3-row module/connector adapter (arrow, Fig. Fig 1 ) which must be installed into the existing contact box, part no. 140 589 06 63 00.
NOTE:
The retrofit kit is part of the 1994 automatic shipment, minimum A and B tool package.
INSTALLATION INSTRUCTIONS
The contact box is modified as follows:
- Remove six screws (A, Fig. Fig 2 ) and the five plug covers (B).
- Remove contact box cover by lifting it upwards.
- Cut the cover panel (C, Fig. Fig 3 ) with diagonal cutter pliers (D) and remove.
- Remove panel (E, Fig. Fig 3 ) from the side of the contact box. The screws (1), lock washers (2) and nuts (3) are to be reused for installing the plug.
- Unscrew the plug cover (B Fig. Fig 2 ) from the modification kit.
- Install the plug into the proper opening, ensuring that the polarity mark (F [white dot], Fig. Fig 4 ), is on top.
- Fasten plug using screws (1, Fig. Fig 4 ), lock washers (2) and nuts 3).
- Snap the 3-row connector into position (G, Fig. Fig 4
). The 3-row connector has one bottom skirt longer than the other. The long skirt is placed towards the 2-row connectors already installed. When snapping it into place, ensure that the clips of the 3-row connector snap into the correct openings. In addition, one side of the 3-row connector strip has a shorter clip (arrow) than the other end (G). See Fig 4
.CAUTION: Installing the 3 row connector backwards will cause it to break.
- Place contact box cover back onto the contact box and fasten with six screws (A, Fig. Fig 5 ).
- Be sure that all connectors are properly seated allowing for a small amount of play after the contact box has been reassembled.
- Reinstall plug covers (B, Fig. Fig 5 ).
- Drill a 2.5 mm hole in the contact box cover as per dimensions shown for sheet metal screw (H, Fig. Fig 5 ). The chain on the plug cover is fastened with the screw supplied.
CAUTION:
Use extreme caution when drilling the hole in the contact box cover. Do not drill deeper than the length of the screw, otherwise damage to the internal wiring may result. The holes for the sheet metal screws may be drilled into the cover while the cover is off the box. This would avoid the possibility of damaging the internal wiring of the contact box while drilling.