Volkswagen Golf / Golf Plus. Manual - part 336

 

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Volkswagen Golf / Golf Plus. Manual - part 336

 

 

– Bend catch open slightly -1-.
– Then push engine control unit out of retainer -arrow-.
– Now release connector on engine control unit and pull off con‐

nector.

Installing
– Fit connector to engine control unit and lock connector in po‐

sition.

– Push engine control unit onto bracket.

– Press catch -1- against engine control unit.
– Push protective housing onto bracket.

– Tighten new shear-head bolts -1- evenly until heads shear-

head off.

– Install plenum chamber bulkhead, plenum chamber cover and

wiper arms ⇒  Electrical system; Rep. Gr.  92 ; Windscreen

wiper system; Removing and installing windscreen wiper sys‐

tem .

4-cylinder diesel engine (1.9 l engine) - Edition 01.2009

182

     Rep. Gr.23 - Mixture preparation - injection

 

unit, Golf Plus

Note

If the engine control unit is to be renewed, connect vehicle diag‐

nostic, testing and information system -VAS 5051B- and perform

“Renewing engine control unit” in guided functions.

Removing:
– Switch off ignition.
– Remove plenum chamber bulkhead ⇒  General body repairs;

Rep. Gr.  50 ; Body - front; Plenum chamber bulkhead .

– Loosen securing nuts -arrows-.
– Release connectors on engine control unit and pull off con‐

nector.

– Push bracket -1- off engine control unit in direction of arrow.
Installing:
– Push bracket onto engine control unit.

– Tighten securing nuts -arrows- to 10 Nm.
– Fit connectors and lock in position.
– Install plenum chamber bulkhead ⇒  General body repairs;

Rep. Gr.  50 ; Body - front; Plenum chamber bulkhead .

2.6

Removing and installing anti-theft en‐

gine control unit, Golf Plus

Special tools and workshop equipment required
♦ Grip pliers

4-cylinder diesel engine (1.9 l engine) - Edition 01.2009

2. Engine control unit    

183

 

If the engine control unit is to be renewed, connect vehicle

diagnostic, testing and information system -VAS 5051B- and

perform “Renewing engine control unit” in guided functions.

The shear-head bolt threads are coated with locking com‐

pound. To simplify removing, the shear-head bolts can be

heated using hot air blower -VAS 1978/14- . When doing this,

ensure that no adjacent cables, connectors or components are

damaged!

Removing
– Switch off ignition.
– Remove plenum chamber bulkhead ⇒  General body repairs;

Rep. Gr.  50 ; Body - front; Plenum chamber bulkhead .

– Twist shear-head bolts -arrows- out using grip pliers and re‐

move cover from protective housing.

– Then remove securing nuts for control unit bracket -arrows-.

– Release connectors on engine control unit and pull off con‐

nector.

– Press catches -1- and -2- outwards. Then pull engine control

unit off control unit bracket in direction of arrow.

Installing
– Push engine control unit onto control unit bracket until it en‐

gages in catches.

– Fit connectors to engine control unit and lock in position.

4-cylinder diesel engine (1.9 l engine) - Edition 01.2009

184

     Rep. Gr.23 - Mixture preparation - injection

 

shear-head off.

– Install plenum chamber bulkhead ⇒  General body repairs;

Rep. Gr.  50 ; Body - front; Plenum chamber bulkhead .

4-cylinder diesel engine (1.9 l engine) - Edition 01.2009

2. Engine control unit    

185

 

 

 

 

 

 

 

 

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