Volkswagen Golf / Golf Plus. Manual - part 335

 

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Volkswagen Golf / Golf Plus. Manual - part 335

 

 

Reading and clearing engine control unit fault memory

⇒ page 178

Adapting functions and components 

⇒ page 179

 .

Removing and installing engine control unit, Golf 

⇒ page 180

 .

Removing and installing anti-theft engine control unit, Golf

⇒ page 180

 .

Removing and installing engine control unit, Golf Plus

⇒ page 183

 .

Removing and installing anti-theft engine control unit Golf Plus

⇒ page 183

 .

2.1

Reading and erasing engine control unit

fault memory

Special tools and workshop equipment required
♦ Vehicle diagnostic, testing and information system -VAS 5051-

– Connect vehicle diagnostic, testing and information system -

VAS 5051- as follows:

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

178

     Rep. Gr.23 - Mixture preparation - injection

 

– If faults are stored in the engine control unit, these are shown

one below the other on the display.

– Press 

 button.

– Press button “05 - Clear fault memory” on display.
– Press function “06-End output”.

2.2

Adapting functions and components

Special tools and workshop equipment required
♦ Vehicle diagnostic, testing and information system -VAS 5051-

Select “guided fault finding” in vehicle diagnostic, testing and in‐

formation system -VAS 5051- .
When all control units have been read:
– Press “GoTo” button.
– Select “Function/component selection”.
– Select “Drive train”.
– Select “Engine code”.
– Select “01-Systems capable of self-diagnosis”.
– Select “Engine management”.
– Select “Functions”.
– Select “Function or component”.

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

2. Engine control unit    

179

 

unit, Golf

– Before removing engine control unit, read the control unit iden‐

tification and thus the coding of the current control unit.

⇒ page 179

Removing
– Switch off ignition.
– Remove wiper arms, plenum chamber cover and plenum

chamber bulkhead: ⇒  Electrical system; Rep. Gr.  92 ; Wind‐

screen wiper system; Removing and installing windscreen

wiper system .

– 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.
– 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 .

2.4

Removing and installing anti-theft en‐

gine control unit, Golf

Removing and installing anti-theft engine control unit Golf Plus

⇒ page 183

 .

Special tools and workshop equipment required
♦ Electric cutter -V.A.G 1561 A-
♦ Saw set -V.A.G 1561/14-

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

180

     Rep. Gr.23 - Mixture preparation - injection

 

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 wiper arms, plenum chamber cover and plenum

chamber bulkhead: ⇒  Electrical system; Rep. Gr.  92 ; Wind‐

screen wiper system; Removing and installing windscreen

wiper system .

– Cut into heads of shear-head bolts so that two parallel surfa‐

ces are created -arrows-.

– Remove bolts with grip pliers .

– Insert a screwdriver between protective housing -A- and

bracket -arrow-.

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

2. Engine control unit    

181

 

 

 

 

 

 

 

 

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