ad8050p3000e

Anti-theft alarm (ATA [EDW]) Diagnosis troubleshooting

Type ad · topic 80.50 · version 0100 · 2012-02-10

Applies to: MODEL 164, 169, 171, 203, 209, 211, 215, 216, 219, 220, 221, 230, 245, 251 with CODE (551) Anti-theft alarm system (ATA [EDW])

Where it sits

Function group 3 Body › 80 Central locking system, convenience operation, drive authorization systems › 80.50 Anti-theft alarm system (ATA), Interior motion sensor/Tow sensor — Series 164 · Series 169 · Series 171 · Series 203 · Series 209 · Series 211 · Series 215 · Series 216 · Series 219 · Series 220 · Series 221 · Series 230 · Series 245 · Series 251

AD80.50-P-3000E

Anti-theft alarm (ATA [EDW]) Diagnosis troubleshooting

1.2.12

MODEL 164, 169, 171, 203, 209, 211, 215, 216, 219, 220, 221, 230, 245, 251 with CODE (551) Anti-theft alarm system (ATA [EDW])

Anti-theft alarm (ATA [EDW]) Diagnosis previous knowledge

AD80.50-P-2000E

After receiving a complaint regarding "false alarms", perform troubleshooting.

AD80.50-P-5000E

Before checking for proper function, call up and print out the alarm source memory.

The overview of the alarm source memory can be called and printed out in Xentry Diagnostics in the DAS mask under the control unit of the EDW master:

- "EDW master control unit"

- "Actual values"

- "Alarm sources"

AD00.00-P-2000-04A

Check for proper function only in regard to the present complaint.

Operational check

Test step/scope of testing

Operation/requirement

Specified value/note

Possible cause/remedy

1

Alarm actuation via towing sensor

Remove transmitter key

Close all doors and trunk lid or rear-end door

Lock vehicle with transmitter key

Lift vehicle on one side after approx. 3 min.

ATA [EDW] function display flashes continuously

The alarm should trigger as soon as one wheel is lifted off the ground.

Troubleshooting:

AD80.50-P-5000E

2

Deactivate towing sensor

Remove transmitter key

Momentarily press tow-away protection button

(On model 164, 251 over menu in instrument cluster and on model 216, 221 via COMAND)

Close all doors and trunk lid or rear-end door

Lock vehicle with transmitter key

Lift vehicle on one side after approx. 3 min.

LED in tow-away protection button illuminates for approx. 2 s

ATA [EDW] function display flashes continuously

The alarm should not trigger when the vehicle is lifted.

Troubleshooting:

AD80.50-P-5000E

3

Alarm actuation via interior protection

(with code (882) Interior monitoring (with ATA only))

Close side windows, if necessary sliding roof, panoramic roof, soft top or Vario roof

Remove transmitter key

Open driver, close rotary tumbler on door lock and lean driver door against door frame

Close all other doors and trunk lid or rear-end door

Lock vehicle with transmitter key

Open driver door after approx. 3 minutes and move arm up and down above driver seat.

When the vehicle is completely closed the interior protection has a higher sensitivity.

ATA [EDW] function display flashes continuously

An alarm is triggered.

With code (889) Keyless Go, do not open driver on door handle, otherwise the vehicle can be unlocked the ATA [EDW] deactivated.

Troubleshooting:

AD80.50-P-5000E

4

Deactivate interior protection

(with code (882) Interior monitoring (with ATA only))

Close side windows, if necessary sliding roof, panoramic roof, soft top or Vario roof

Remove transmitter key

Momentarily actuate interior protection button

(On model 164, 251 over menu in instrument cluster and on model 216, 221 via COMAND)

Open driver, close rotary tumbler on door lock and lean driver door against door frame

Close all other doors and trunk lid or rear-end door

Lock vehicle with transmitter key

Open driver door after approx. 3 minutes and move arm up and down above driver seat.

LED in interior protection button flashes for approx. 2 s

ATA [EDW] function display flashes continuously

The alarm should not be triggered by movement in the passenger compartment.

With code (889) Keyless Go, do not open driver on door handle, otherwise the vehicle can be unlocked the ATA [EDW] deactivated.

Troubleshooting:

AD80.50-P-5000E

5

Glass breakage sensors
(on model 164, 203.2/7, 211.2, 251 with code (882) Interior monitoring (only with ATA))

Remove door lining on tailgate

Remove transmitter key

Close door lock rotary tumbler on rear-end door

Close all doors

Lock vehicle with transmitter key

Disconnect connector on glass breakage sensor approx. 1 min. from rear window

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000E

6

Alarm triggering via driver door

Open driver door window

Remove transmitter key

Switch off Interior protection (with code (882) Interior monitoring (only with ATA [EDW]))

Close all doors and trunk lid or rear-end door

Lock vehicle with transmitter key

Open driver door with inside door handle after approx. 15 s

With code (885) Increased theft protection, the driver door can only be opened with the emergency key.

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000E

7

Alarm triggering via passenger door

Open front passenger door side window

Remove transmitter key

Switch off Interior protection
(with code (882) Interior monitoring (only with ATA [EDW]))

Close all doors and trunk lid or rear-end door

Lock vehicle with transmitter key

Open front passenger door with inside door handle after approx. 15 s

With code (885) Increased theft protection, function check is not possible.

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000E

8

Alarm triggering via left rear door
(except model 169.3, 171, 203.7, 209, 215, 216, 230)

Open left rear door side window

Remove transmitter key

Switch off Interior protection
(with code (882) Interior monitoring (only with ATA [EDW]))

Close all doors and trunk lid or rear-end door

Lock vehicle with transmitter key

Open left rear door with inside door handle after approx. 15 s

With code (885) Increased theft protection, function check is not possible.

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000E

9

Alarm triggering via right rear door
(except model 169.3, 171, 203.7, 209, 215, 216, 230)

Open right rear door side window

Remove transmitter key

Switch off Interior protection
(with code (882) Interior monitoring (only with ATA [EDW]))

Close all doors and trunk lid or rear-end door

Lock vehicle with transmitter key

Open right rear door with inside door handle after approx. 15 s

With code (885) Increased theft protection, function check is not possible.

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000E

10

Alarm triggering via trunk lid
(model 171, 203.0, 209, 211.0, 215, 216, 220, 221, 230)

Close all doors and trunk lid

Lock vehicle with transmitter key

Open trunk lid with emergency key after approx. 15 s.

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000E

11

Alarm triggering via rear-end door
(model 164, 169, 203.2/7, 211.2, 245, 251)

Remove transmitter key

Switch off Interior protection
(with code (882) Interior monitoring (only with ATA [EDW]))

Close doors

Enter cargo area and close rear-end door

Lock vehicle with transmitter key

Open rear-end door via emergency actuation after approx. 15 s

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000E

12

Alarm triggering via engine hood

Open driver door window

Remove transmitter key

Switch off Interior protection
(with code (882) Interior monitoring (only with ATA [EDW]))

Close all doors and trunk lid or rear-end door

Lock vehicle with transmitter key

Open engine hood through open side window after approx. 15 s

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000E

13

Alarm actuation via glove box

(model 171, 209.4, 230)

Enter vehicle

Close doors

Remove transmitter key

Switch off Interior protection
(with code (882) Interior monitoring (only with ATA [EDW]))

Open glove compartment.

Actuate switch in glove box by hand and hold

Lock vehicle with transmitter key

Release switch in glove box after approx. 15 s

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000E

14

Alarm triggering via center console stowage compartment

(Model 171, 230)

Enter vehicle

Close doors

Remove transmitter key

Switch off Interior protection
(with code (882) Interior monitoring (only with ATA [EDW]))

Open stowage compartment in center console

Actuate switch in center console stowage compartment by hand and hold

Lock vehicle with transmitter key

Release switch in center console stowage compartment after approx. 15 s

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000E

15

Trigger panic alarm

(with code (763) Radio remote control with panic switch)

Close all doors and trunk lid or rear-end door

Lock vehicle with transmitter key

Press "Panic button" on transmitter key

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000E

16

Siren self-alarm

Expose access to alarm siren (loosen right front fender liner in area of A-pillar and press to side)

Remove transmitter key

Close all doors and trunk lid or rear-end door

Lock vehicle with transmitter key

Disconnect connectors from alarm siren after approx. 15 s

The alarm is very loud due to the proximity to the alarm siren. Wear ear protection.

An acoustic alarm is triggered.

To terminate the alarm reconnect the plug connector and then unlock the vehicle with the transmitter key.

Troubleshooting:

AD80.50-P-5000E

Referenced documents