Alarm System - Intermittent False Alarm
Group 65Sound System, Cruise, Alarms
65 53 01
Service Engineering
Woodcliff Lake, NJ
March 2001
SUBJECT
False Alarms Caused by Hood Switch
MODEL
X5 (E53) Vehicles produced before February 2001
SITUATION
Intermittently a false alarm is triggered. The alarm counter in DIS shows the alarm was triggered by the hood switch
CAUSE
Body assembly tolerances can cause the hood switch to have insufficient travel.
CORRECTION
On a customer complaint basis only, using DIS or MoDiC, confirm that the false alarm was set by the hood switch as follows:
-- In "Diagnosis", select - "Function selection / Complete vehicle / Body / Locking and security functions / Burglar alarm system / Test schedule." (This provides access to the burglar alarm system diagnosis program.)
-- Then select - "Fault symptoms / Option 3. Anti theft issues false alarm"
-- Then select - "Continue troubleshooting? "Yes"". (This gives access to the alarm counter, which displays the alarm system component that caused the alarm to trigger.)
If the alarm was not triggered by the hood contact, continue troubleshooting.
If the alarm was triggered by the hood contact, remove and replace the hood switch with new hood switch with an extended plunger. Refer to repair instruction 61 31 241
PARTS INFORMATION
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.