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Side Mirror Repair and Replacement
 
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Pelican Technical Article:

Side Mirror Repair and Replacement

Tom Morr

Time:

2 hours2 hrs

Tab:

$100 to $300

Talent:

**

Tools:

T10 Torx bit, small flathead screwdriver, Phillips screwdriver, trim removal tool

Applicable Models:

Mercedes-Benz R170 (1998-04)

Parts Required:

Replacement mirror, motor, frame, and/or housing

Hot Tip:

Use touch-up paint to revive or color-match the housing

Performance Gain:

Restores safe side visibility

Complementary Modification:

Interior rearview mirror

SLK side mirrors sometimes get thwacked. In the best-case scenario, the mirror glass simply breaks. Either way, mirror mishaps can be solved at home.

Most R&R maneuvers can be performed with the mirror on the car. Alternately, the mirror assembly is easy to remove. The access panels inside the door pop out to reveal the wiring plug and three Phillips screws.

The mirror is held to the motor by a small wire clip. Gently pushing the mirror's bottom inward will create a gap between the top edge of the mirror and the plastic housing. The hump in the wire clip can be snared with a jeweler's screwdriver. Lifting up releases the wire, decoupling the mirror glass from the motor.

The motor itself is attached to the gear with three screws. Three additional screws secure the plastic frame piece from the main housing.

Reverse the steps to replace any broken components.

The side mirror assembly attaches to the door with three screws (purple arrows).
Figure 1

The side mirror assembly attaches to the door with three screws (purple arrows). They're easily accessible by prying off the trim plates on the door panel (please see the door panel removal article for details). The plug can be fished out through the hole and disconnected.

Removing the door panel isn't necessary, but here's the view with it off.
Figure 2

Removing the door panel isn't necessary, but here's the view with it off.

Once the three screws are out and the wires are unplugged, the mirror assembly simply lifts off.
Figure 3

Once the three screws are out and the wires are unplugged, the mirror assembly simply lifts off. The process is the same for pre-facelift cars (shown) and later models, with turn indicators in the side mirror housings.

Push the bottom of the mirror inward to tilt the top outward.
Figure 4

Push the bottom of the mirror inward to tilt the top outward. Lift the retaining clip up and off, using a small screwdriver under the wire's hump (purple arrow) if necessary.

Two wires with spade connectors run to the glass (red arrows).
Figure 5

Two wires with spade connectors run to the glass (red arrows). Metal tangs (yellow arrows) locate the mirror on the motor. The plastic front frame piece attaches to the mirror housing with three screws with T10 Torx heads (purple arrows).

Three screws (purple arrows) secure the motor to the gear.
Figure 6

Three screws (purple arrows) secure the motor to the gear. They take a T10 Torx bit.

The wires plug into the motor (purple arrow).
Figure 7

The wires plug into the motor (purple arrow).

Reverse the disassembly steps to replace components.
Figure 8

Reverse the disassembly steps to replace components. Make sure that the mirror's retaining wire clips over the motor and secures under the plastic tab (purple arrow).

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Comments and Suggestions:
Mr Bill Comments: The left side mirror is of our 2004 SLK230 is the darkened area seems to darkened. The darkening has increased from about 30% to 75% over the last 3 months. When I press on the mirror surface, it appears to move like there is liquid under the surface. I would like to replace or improve the visibity. What is your suggestion?
September 25, 2017
  Followup from the Pelican Staff: Replace the mirror glass. Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
Mercime Comments: Hi. I hope someone can help! I have a 2007 Mercedes c280 4matic, I replaced the signal in my driver side mirror and it works great. Problem when I was removing the housing the clip would not fully release, after trying for awhile I realized part of it was really tight and pressed a bit too hard and broke the latch that the clip attaches to and now although the mirror is in place it is loose. What can I do....please help!
January 17, 2017
  Followup from the Pelican Staff: You'll have to replace the piece the clamp attaches to. Or try to repair what broke. Which may be impossible. Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 

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Page last updated: Thu 10/19/2017 02:33:06 AM