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VW Golf mk4 DIY articles |
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How to
fit VW Golf mk4 cruise control
This article was provided courtesy of
www.golfmk4.co.uk
Please visit them for more Audi A4 articles
It is possible to fit
factory specification Cruise Control to a number of VAG group vehicles using
OE parts at a fraction of the cost of that charged by a dealer for this
conversion ;
VW Golf Mk4 / Bora 1997-1994
Audi A3/S3 (mk1) 1996-2003
Audi TT (mk1) 1999-2006
Skoda Octavia (mk1)
1998-2005
Seat Leon/Toledo (mk1)
2000-2005
with Drive-By-Wire (Electronic)
Throttle
All TDI models, plus later
1.6 (16v), V5 and V6 models are partly wired for cruise control already.
However it is also possible to apply cruise control conversions to 1.8 Turbo petrol
models using an additional wiring loom. Basically, if you have an electronic
throttle, and hence an 'EPC' light on your dashboard, then it should be
possible to retro fit cruise control onto your Golf mk4 based model.
For other VW models please
check out my links
page, including a list of internet resources for cruise control fitment onto
a range of models.
Parts Required
for golf mk4 cruise control ;
All Models:
Replacement Indicator Stalk Switch with cruise
control VAG p/n: 1J0 953 513 01 C
Note that this part is
preferable to the earlier specification part, 8L0 953 513J 01C, as fitted as
original equipment on models up to around 2001. However both types are
totally interchangeable, but the later part is easier to operate.
Additional wiring loom for cruise control switch
VAG p/n: 1J0 971 425
Both of these parts may also be available from
your local VW/Skoda/Seat/Audi dealer and are sold as a VAG approved kit for
retro-fitting cruise control to golf Mk4 and Bora TDI models. The approximate
retail cost for these parts is £70, so don't get ripped off on Ebay!
1.8T Engined Golf/Bora/TT/A3/S3/Octavia/Leon
For 1.8T models, an
additional loom is required to connect between the interior of the car and
the engine ECU. This loom is unavailable from VAG dealers and many will tell
you that cruise control cannot be fitted to 1.8T models. For this reason I
made my own loom, which simply replicates the cabling that would be factory
installed on new 1.8T Golf models with factory fitted cruise control. After
verification on a number of VAG models I can now supply this loom to other
VAG owners wishing to perform the installation.
Procedure
;
All Models
1) Before
beginning, please read the following page if your vehicle is fitted with
the VAG 'ESP' stability control -
ESP
Warning
2)
Enable the ECU for Cruise Control using VAG-COM or similar. Note that this
procedure does not require the registered version of VAG-COM :
[Select]
[01 - Engine]
[Login - 11]
Enter 11463 to activate cruise control
[Do It!]
(Procedure courtesy of
www.ross-tech.com)
Note - There are two methods using
VAG-COM to verify if your ECU has been successfully activated for cruise
control. Firstly, when you open the engine module the engine description
will include a letter G if cruise is active, eg
1.8L 5V 110KW TLG V005. Secondly,
the outputs from block 6 of the engine module will show a 0 in the RH
column if cruise is active, but 255 if it is still disabled. If you need
to deactivate cruise you can repeat the login procedure above but enter
the code 16167.
With cruise control enabled and all wiring
completed, it is possible to view the outputs from the cruise switch with
VAG-COM by viewing block 66 of the engine module. This may be useful for
diagnosis of a wiring fault once installed.
3) Install the Cruise Control stalk & interior
wiring
follow Foxys excellent guide for a diesel model which can be found
here .
Alternatively, a copy of the official VW TDI
installation procedure instructions can be found
here.
Note that some OEM supplied looms do not include
the additional connector housing and link wire to 'tap in' to the existing
feed wire from fuse 5. In this case it will be necessary to use alternative
means to connect the cruise control loom into the existing black/blue wire,
as shown below
4) Complete the engine bay connections
Follow Foxys guide to connect the VW loom to the black multiway connector
within the bulkhead connector box. If the additional engine bay loom is
required for your car, do not reassemble any components within the engine
bay at this time.
1.8T Engined Golf/Bora/TT/A3/S3/Octavia/Leon/Toledo
only
5) Fit the additional cruise control wiring
loom for 1.8T models,
following the guide
here
Seat/Audi Trim Variations
Steering Wheel Airbag
Audi A3/S3/TT models have steering wheel airbags
retained by two small caphead bolts behind the steering wheel and not the
spring clips used on other VAG models.
Interior trim construction
Seat and Audi models all use a simpler lower
dash construction than Golf/Bora models. This means that the complete lower
dash panel under the steering column can be removed in one piece, thereby
allowing easier access to the underside of the bulkhead mounted wiring
connectors.
Scuttle Panel Construction
Seat and Audi Models have windscreen washer jets
mounted on the plastic scuttle panel below the windscreen. It is therefore
necessary to disconnect the push fit hose connections to the washer jets
before the panel can be removed. If the washer jets are heated then there
will also be wiring connectors to be removed. Once the washers have been
disconnected, the panel is generally easier to remove than on Golf/Bora
models as there is less interference around the bonnet hinges.
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