Exterior mirrors

Facelift

Exterior mirror of facelift vehicle.

Parts

Left outside rearview mirror (from EPC).

Right outside rearview mirror (from EPC).

Outside rearview mirror

Part number A2208100576 (left) and A2208100876 (right). The part comes without glass and cover as shown in the picture below. The part is attached to front door using 3 A0029843729 (M4X22) bolts.

Rearview mirror (A2208100876).

Holes in the door.

Mirror cover

Part number for mirror cover is A2208100964 (left) and A2208101064 (right). The part comes without turn signal light module.

A2208100964 (front).

A2208100964 (back).

A2208100964 (vanity light opening).

Turn signal light

Turn signal light (blinker lamp) has part number A2208200521 (left) and A2208200621 (right).

For the vanity light bulb there is LED upgrade available.

A2208200621 (front).

A2208200621 (back).

Adjustment motor

Electronic adjustment motor A2038202242 is used on both sides.

A2038202242 (front).

A2038202242 (back).

A2038202242 (connector pins).

Error Code	Generated By	Description
B1208	DCM-FL - Door control module front left	The signal from component M21/1r3 (Mirror in/out adjustment potentiometer) is faulty.

Seals

Mirror seals (gaskets) have part number A2208110198 (left) and A2208110298 (right).

Gaskets A2208110198 and A2208110298.

Worn gaskets.

Glass

Original mirror glass is expensive high theft risk part (especially driver's side mirror for option code 249 - INSIDE AND OUTSIDE MIRROR AUTOMATIC DIMMING).

Aftermarket mirrors with heating are available in ebay for as cheap as 15 EUR.

A2208101321 with dimming for LHD vehicles.

A2208101821 (front).

A2208101821 (back).

DIY

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Pre-facelift

Exterior mirror of pre-facelift vehicle.

DIY

• Remove the mirror cover by pressing in a small spring clip at the top.
• Release the mirror housing cover by also pressing in a spring clip near the outer edge.

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Driver-side exterior rearview mirror automatic dimming feature

The inside rearview mirror (A67) in combination with the overhead control panel control module (N70) serves as master for dimming the electrically adjustable and heated left outside mirror (M21/1) (special equipment).

1 - CAN-message: "Shift lever position" 2 - CAN-message: "Reverse gear engaged" A67 - Interior rearview mirror unit M21/1 - Left electrically adjustable and heated exterior rearview mirror M21/2 - Right electrically adjustable and heated exterior rearview mirror N15/5 - Electronic shift lever module control module N70 - Overhead control panel control module N73 - Electronic ignition/starter switch control module

Function prerequisites:

• Voltage not too low or too high
• C.15R or C.15 ON

The light reaching the surface of the mirror is reflected to a greater or lesser extent depending on the magnitude of the control voltage. The control voltage is regulated by the interior rearview mirror unit (A67) (master) and the overhead control panel control module (N70). Two discrete leads are connected to the left front door control module (N69/1) for this purpose (vehicles with right-hand steering: right front door control module ((N69/2)).

Regulation is accomplished depending on the ambient light and the light reaching the mirror. These two variables are measured by the ambient light sensor (A67h2) in the interior rearview mirror housing (rear) and the automatic dimming interior rearview mirror sensor (A67h1) in the mirror glass in the interior rearview mirror unit.

If one of the interior lights is switched on or the CAN message "Reverse gear engaged" is received from the electronic ignition/ starter switch control module (N73), the exterior rearview mirror as well as interior rearview mirror become brighter.

Adjust left/right exterior mirror function

(Shown on LHS vehicle)

1 - CAN message: "Left exterior mirror to left/right/up/down" M21/1 - Left exterior mirror, electrically adjustable and heated M21/2 - Right exterior mirror, electrically adjustable and heated N69/1 - Door control module front left N69/2 - Door control module front right S50/1 - Switch for exterior mirror adjustment with fold in/out function

Function

Function requirements:

• no overvoltage/undervoltage
• Term.15R or 15 ON

The left and right exterior mirrors can be electrically adjusted via the switches in the switch train for exterior mirror adjustment with fold in/out function (S50/1) in the front left door control module (N69/1) (RHS vehicle: Front right door control module (N69/2)). The following settings are possible:

• Horizontal mirror glass adjustment
• Vertical mirror glass adjustment
• Mirror housing folding-in (garage position) and folding-out (driving position)

The adjustments are carried out by the motors in the left electrically adjustable and heated exterior mirror (M21/1) and the right electrically adjustable and heated exterior mirror (M21/2). The motors are actuated via the front left door control module (N69/1) and the front right door control module (N69/2).

The memory function (special equipment) can be used to call up stored mirror settings. Setting the parking position of the exterior mirror on the front passenger's side enables the driver to check the distance of the relevant rear wheel from the edge of the curb when reversing into a parking space.

Up to 31.05.01 the fold in exterior mirror switch (S50/1s4) or the fold out exterior mirror switch (S50/1s5) must be actuated until the mirror housings are in the desired position.

As of 01.06.01 the fold in exterior mirror switch (S50/1s4) or the fold out exterior mirror switch (S50/1s5) merely have to be touched, and the mirror housings are automatically moved to the desired position.