Procuring replacement keys
Replacement keys can be obtained from a sales point only via a BMW dealer where one of the 6 replacement keys fitting the vehicle is programmed. This key is not a copy of the lost key, but rather a new key.
The sales centre always makes a new key! A total of not more than 6 replacement keys suitable for the installed EWS control unit can be made and handed over! The key data of delivered replacement keys are deleted from the database!
The order for making a key in the sales centre cannot be further processed before all the necessary customer and dealer data have been submitted in full.
Every request for a key is documented so that all inquiries from insurance companies and authorities can be followed up.
In view of the more stringent antitheft requirements, the procurement of replacement keys will in future be more involved than it has been in the past.
As from key No. 5 (first replacement key) all replacement keys will feature an 'E' on the key bit for identification purposes.
With the aid of the DIS tester, a lost key can be disabled on the vehicle and re-enabled if the key is found again. All keys still in the customer's possession must be submitted for this purpose.
Replacement of the EWS control unit
A pre-initialized control unit must be obtained from the designated sales centre for the purpose of replacing the EWS control unit. The procedure is similar to that for procuring replacement keys.
The new EWS control unit must then be encoded in the vehicle. During this procedure the individual control unit number (ISN) of the engine control unit (DME/DDE) is transferred to the EWS control unit. The encoding procedure must be carried out as follows:
- Select the defective EWS control unit that is still installed in the vehicle with the coding program. The data are then buffered in the MoDiC or DIS tester.
- Install new EWS control unit.
- Encode new EWS control unit, i.e. transfer the buffered data.
- If diagnosis is no longer possible on the defective EWS control unit, it will be necessary to enter the vehicle identification number and the central encoding code by hand in the new EWS control unit.
Replacement of engine control unit (DME/DDE)
After replacement, the new engine control unit must be encoded by means of the DIS tester or MoDiC. During this procedure the individual control unit number (ISN) stored in the engine control unit (DME/DDE) is transferred to the EWS control unit.
Replacement of the transceiver module (S/E module)
Initialization is not necessary.
Obtaining spare parts
In addition to the production plants, the following sales centres are currently equipped with programming stations for the purpose of initializing EWS components:
- For Europe: Dingolfing (Central Parts Distribution Depot)
- 2 centres in the USA for North, Central, South America and Canada
- For East Asia, Australia and Oceania: Japan
- For Southern Africa: South Africa
The following EWS 2 components are available as spare parts through the sales centres:
- Pre-initialized transponder key
- Pre-initialized EWS 2 control unit
- Pre-encoded/non-coded DME/DDE
- Steering lock barrel
- Lock barrel for doors and lids/flaps
- Lock barrel with key without transponder
- Pre-initialized uniform lock system with EWS 2 control unit
- Electronic transceiver module (S/E module)
- Loop antenna (coil)
Procedure for loss of all 10 keys
By providing all the necessary data, the authorized customer is able to obtain from the sales centre a new EWS control unit and new initialized transponder keys with the previous mechanical key code via a BMW dealer.
If all 10 keys and all acquired data (also in the database centre) are lost it will be necessary to replace both the EWS control unit as well as all the keys. Since, in this case, the parts are not standard stock, the parts are supplied only by the Central Parts Distribution Depot (ZKA).