BMW 5 Series E39

since 1996-2001 release

Repair and operation of the car

+ Introduction
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Cooling systems, heating
+ Power supply system and release
- Engine electric equipment
   + System of ignition
   - 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
   + Systems of a charge and start
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment
+ System of onboard diagnostics

Check, removal and installation of candles of an incandescence

In the presence of difficulties at start of the engine it is necessary to check first of all a compression in engine cylinders. If the compression is insufficient, then the engine at a low temperature is not started, address the Section Check of a Compression.

The DDE control unit is equipped with the memory of malfunctions which is writing down the malfunctions which arose in an electric part of fuel system of the diesel. On HUNDRED data which are contained in memory there can be schitana by means of the special device.


1. Uncover the engine and a pressurization pipe over glow plugs.

2. Glow plugs are under the soaking-up channels.

3. Disconnect a cable to glow plugs (an arrow on an accompanying illustration).

4. Attach the device for check of tension to positive contact (+) and in turn to each glow plug.

5. If the light-emitting diode lights up: Glow plug as it should be. For more exact check it is necessary to measure by the ampermeter current size.

6. If the light-emitting diode does not light up: The glow plug is damaged. Replace it.


1. Remove the inlet pipeline, address the Section Removal and installation of the inlet pipeline

2. Disconnect cables (1) and (2). Turn out glow plugs and check visually. Address an accompanying illustration.


1. Grease a carving of candles of an incandescence with high-temperature copper CRC paste. Screw candles. Moment of an inhaling of 25 Nanometers.

It is not necessary to exceed the specified inhaling moment since the ring gap between a heating core and a carving part of a candle can increase.

2. Attach a cable to glow plugs. Tighten a nut of fastening the moment of 5 Nanometers.
3. Fix the inlet pipeline to a head of cylinders by the moment of 25 Nanometers. Replace all consolidations with new. Support of the case of an oil filter and the pipeline of system of recirculation fix to the inlet pipeline also by the moment of 25 Nanometers.
4. Establish to the place of a cover of the engine and a pressurization pipe.

Glow plugs with the fused cores

The fused cores of candles of an incandescence often are a consequence of faulty work of nozzles.

At detection of the damaged candles (shooter) it is necessary to replace them and it is obligatory to check work of nozzles.