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E39 series BMW 5

since 1996-2001 of release

Repair and car operation



E39 BMW
+ Introduction
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Systems of cooling, heating
+ Power supply system and release
- Engine electric equipment
   + ignition System
   - System of preheat of the diesel engine
      Check, removal and installation of candles of an incandescence
      Check, removal and installation of the relay of preheat
   + charge and start Systems
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ electric equipment Schemes
+ System of onboard diagnostics


Heavy Metal & Reflected



Check, removal and installation of the relay of preheat

 PERFORMANCE ORDER

1. Remove a box of the filter of clean air in an impellent compartment behind on the right. It will provide access to the block of safety locks and the relay.

2. Uncover the block of safety locks, having unscrewed fastening bolts.

3. Disconnect the relay of preliminary heating (1). 2-DDE control unit. Address to an accompanying illustration.

4. Check a safety lock on 80 And near the connecting tip. If it failed, replace. Previously find out the overload reason. Address to an accompanying illustration.

5. Disconnect a thick positive wire from the relay case.
On an illustration the scheme of connection of the relay of preheat is shown. The similar scheme is available on a relay cover.
G1... G6: glow plugs 1... 6;
Kl. 15: plus connected by means of the switch of ignition;
Kl. 30: plus of the storage battery;
Ust: operating tension (from the DME control unit);
Dia: diagnostics connection

6. Attach the storage battery and the device for tension check to the tip of the plug 15 and to weight. Include ignition. The light-emitting diode of the device should light up. Otherwise check tension giving from the ignition lock.

7. If the light-emitting diode lights up, check a wire to glow plugs. If necessary replace it. If it does not help, replace the preheat relay.

8. Establish into place a control unit cover.

9. Close the block. Establish into place the filter of purification of air of salon.