Mechanics

REMOVING IGNITION LOCK HOUSING AND IGNITION SWITCH ON A C280

1997 Mercedes Benz 190d • 156,000 miles

I can't turn the ignition key, I removed the lower panel below the igniton lock housing, and have purchase this as well as the ignition lock w/tumbler, how do I replace? This is the California only 1997 c280 series.
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Robl123
January 9, 2012.




STEERING COLUMN SWITCHES -1997 Mercedes-Benz C280
Page 1 of 1
IGNITION SWITCH & STEERING LOCK HOUSING

Removal

1.
Remove lower instrument panel cover below steering wheel. Remove snap-in panel around ignition key cylinder. Make installation reference marks on all wiring connectors. Disconnect
wiring connectors from steering lock housing and from rear of ignition switch. Turn ignition key to No. 1 position.
Loosen steering lock housing retaining clamp bolt, located near steering column. See Fig. 1
in locking pin, located to left of retaining clamp on jacket tubing. Leave retaining clamp on jacket tubing. Pull steering lock housing out of jacket tubing slightly.
Remove ignition key to enable removal of steering lock housing from jacket tubing. With steering lock housing removed from jacket tubing, ignition switch can now be removed from rear of
steering lock housing by removing 3 retaining screws.
2.
. Push
3.
Installation

1.
To install, locate ignition switch locating lug to recess in rear of steering lock housing. Install switch retaining screws. Ensure steering lock and ignition switch mechanisms operate properly.
Install steering lock housing into jacket tubing by pushing inward on housing locking pin and pushing steering lock housing into jacket tubing until bottomed.
2. Ignition key may require turning to engage steering lock housing locking tab into steering column. Ensure steering lock housing locking pin engages in jacket housing hole. Install clamp. Reconnect
wiring connectors. Install lower instrument panel cover below steering wheel and snap-in panel around ignition key cylinder.

STEERING COLUMN SWITCHES -1997 Mercedes-Benz C280
Page 1 of 1
LOCK CYLINDER

Removal

Fabricate a releasing wire tool according to specifications. See Fig. 2
around ignition key cylinder. Insert ignition key and turn to position No. 1. Insert releasing wire tool into both small holes in lock cylinder face. Small holes in lock cylinder face should be at
about 1 and 7 o'clock positions with ignition key in No. 1 position.
1.
. Remove snap-in panel
Fig. 2: Fabricating Release Wire Tool For Lock Cylinder Removal Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
2.
Push inward lightly on releasing wire tool to unlock detents while pulling outward on ignition key to remove lock cylinder and cylinder cover cap from steering lock housing. Remove releasing
wire tool, ignition key and cover cap from lock cylinder.
Installation

1.
Align lock cylinders raised guide area with steering lock housing groove. Insert, but DO NOT bottom, NEW lock cylinder into steering lock housing. Push cylinder cover cap onto steering lock
housing, with the small notch on cover cap's large diameter end toward the left side of steering lock housing. See Fig. 1.
Insert ignition key and turn lock cylinder to No. 1 position. Push cover cap and lock cylinder into steering lock housing, ensuring both parts engage securely into steering lock housing.
All parts are installed correctly if ignition key points to center indent mark (No. 1 position) on cylinder cover cap, and small notch on cover cap large diameter end is aligned with raised portion
on steering lock housing. Ensure steering lock and ignition switch mechanisms operate properly. Install snap-in panel around ignition key cylinder.
2.
3.


Rivermikerat
Jan 11, 2012.


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