Category Archives: Exterior

Volkswagen Golf Automatic Hatch Opening Updated

The original Automatic Hatch Opening became less reliable over time as the springs compressed, this updated guide uses new struts from Skoda and bumpers from the Scirocco.

Parts required

  • 2 x 6Y0 827 550 C (6Y0827550C) – Skoda Fabia gas struts
  • 2 x 1K8 827 761 C (1K8827761C) – Scirocco bumpers
  • 2 x 1J6 827 439 A ( 1J6827439A) – Strut ball pins
In Europe allow around €65 depending on the source, in the US the kit can be purchased from ECS Tuning. Australian pricing is around $300 through the dealerships so purchasing from Europe or the US is the way to go however freight can be expensive.

Tools required

  • VCDS or Volkswagen Dealer to perform the changes required
  • 13mm spanner (an adjustable spanner can be used instead)
  • 24mm spanner (an adjustable spanner can be used instead)
  • Small flathead screwdriver (#1 size)
  • 3mm allen key
  • optional – Something to hold the hatch up (a broom, your head or similar)
  • optional – plastic safe grease

The parts required

The hatch needs to be supported for this part of the install so if you don’t have someone around to assist and you have a broom handy this can be placed in the handle area of the hatch and will hold the hatch up whilst you remove and replace the struts and ball pins as once a strut is removed it will fall on your head. If you don’t have a broom just make sure you have all the tools you require at hand and you can sit the hatch on your head whilst you work.

Removing the gas strut

Working on the hatch side insert the #1 flathead screwdriver into area shown (there is a small recess) and carefully lever the clip towards the end until it sits in place as shown in the second photo.

Pull the gas strut away from the pin to remove (a plastic trim removal tool can assist if it’s hard to remove).
The same process is repeated on the body side of the strut mounting.
Pull the gas strut away from the pin to remove (a plastic trim removal tool can assist if it’s hard to remove).

Replacing the ball pin

Using the 13mm spanner remove the ball pin from the hatch, this may be difficult to remove due to the paint holding it in place, using a sharp knife you could score the paint around the washer carefully to make it easier to remove and less prone to chipping or tearing at the paint on the hatch. I placed electrical tape on the spanner to make it a tighter fit and also stop the paint on the original ball pin from being damaged.
Unscrew the ball pin by hand once loose and clean up any raised loose pieces of paint around where the washer was sitting.
Install the new ball pin, you can see the new ball pin has a smaller washer but you can’t remove the washer from the other ball pin to use. To make it look like the old one you could spray paint the pin and the base.
The original ball pin and the one on the body had grease on them and I added a plastic safe grease to both after cleaning them.

Installing the new gas strut

Installation of the new gas strut is a reverse of the removal process. I found it easier to slide the clip back to allow the strut to clip on easier.

Removing the bumper

Using a 24mm spanner or adjustable spanner remove the bumper by rotating  ~90 degrees and pulling it out.

Installing the bumper

The new bumpers are shown below, the lower one is adjusted to be fully extended and the upper one is fully retracted which is how it will be used on the Golf.

Insert the 3mm allen key into the end (make sure the bumper is locked first by pressing down on it and turning – the pictures above are of the bumper popped out and able to move up and down whereas the picture below shows the bumper locked into place) and turn counter-clockwise until it stops.

Push down on the bumper until it’s fully retracted and turn the allen key clockwise until it stops to lock it into position.

The bumper should now look like this, install into the opening, turn ~90 degrees to lock it into place and press downwards on the bumper and turn to unlock it so it is as shown in the second photo. The bumper can now be compressed and will assist in the initial opening of the rear hatch.

Coding changes

In VCDs/Vagcom change Byte 2 Bit 3 in the Central Convenience Controller 46.

Measurements (before and after)

Before: 65cm or 25.5″

After:   61.5cm or 24.25″

Comparison of parts

Bumper comparison

First photo is the bumper extended and the second locked in place to show it’s closed position (standard top / scirocco bottom).

As above, shows the standard bumper and the scirocco both extended and locked in position.

Ball Pin Comparision

(new one on the left, old one on the right)

The washer on the new one is 17mm whereas the old one is 20mm.

The height of the new one is 19mm whereas the old one is 30mm.

The size of the ball is identical when the paint thickness is taken into account.

Strut Comparison

The length of the shafts is pretty much identical at this end.

The thickness of the struts is different with the old one being 22.15mm and the new one being 19.20mm.

At this end the length of the struts is clearly different with the new one being 9.50mm shorter.


Upgrading Volkswagen Halogen Headlights to Osram Super Bright Off Road 65watt bulbs

osram_super_bright_off_road_65w_64217Osram Super Bright Off Road H7 Bulbs contain a H9 element to boost light output to 2100 lumens (50% increase from standard H7 55w) with a 18% increase in power consumption (65w whereas a standard H7 is 55w).

Osram EAN/Product No: 4050300524399
Product Description: 64217
ECE Category: H7
Base (standard designation): PX26d
Nominal Wattage: 65 W
Lumens: 2100
Life (hours): 500

Comparison with NightBreaker (left in each photo)




Comparison Photos with Osram Nightbreaker H7


Nightbreaker H7 installed left and right. Light output 1,408,000 lux (measured 1m from centre of filament)


Nightbreaker H7 left, Offroad 65w right. Light output 1,852,000 lux (measured 1m from centre of filament). 31% improvement.

Volkswagen Golf Auto Headlights above 140kph

The Golf has a feature turned on by default in countries that have the “auto” european light switch.

The only requirements are the Central Electronics Controller (09) of type 3C0 XXX XXX XX, a RegenLichtSens (RainLightSensor) and the european light switch.

The operation of the system is

  • Lights turn on at 140kph (actual speed not speedometer speed)
  • Lights turn off after 10 minutes driving under 80kph (again actual speed) or 10 minutes stopped (with or without ignition turned off)

Disable Auto Headlights above 140kph

  1. Open the Central Electronics Controller (09)
  2. Click the drop down box and choose the RegenLichtSens (RainLightSensor)
  3. Note the software coding (00)208933 (most cars have different codings)
  4. Convert to Hex 3 30 25
  5. Remove 1 from the left hand value Hex 2 30 25
  6. Convert to Decimal (00)143397 and replace the old coding.

Enabling Auto Headlights above 140kph

Perform the above but instead of removing 1 from the left hand value you add 1.


  • +1 = Highway Light
  • +2 = Rain Light
  • +4 = Rain Closing

The left hand value has the following options.

  • 0 = No option
  • 1 = Highway Light (1)
  • 2 = Rain Light (2)
  • 3 = Highway Light (1) + Rain Light (2)
  • 4 = Rain Closing (4)
  • 5 = Highway Light (1) + Rain Closing (4)
  • 6 = Rain Light (2) + Rain Closing (4)
  • 7 = Highway Light (1) + Rain Light (2) + Rain Closing (4)

Conversion can be down with the windows calculator as shown in the images (windows 10 in programmer mode)

Step 1: Enter the existing as decimal and this converts to hex, note down the hex value.


Step 2: Select hex, enter the hex value you want (in this case ALL the options) and note the decimal value.


Volkswagen Golf Auto Rain Closing Windows and Sunroof

An undocumented feature on the Golf MKV is automatic rain closing windows.

The only requirement is having a

  • RegenLichtSens (RainLightSensor)

Operation of the system

  • Rain closing activates only when the car has been locked.
  • The windows and sunroof if fitted will close automatically after 24 hours.

To activate the feature there are two steps, one is to enable the feature and one is to enable the menu if there is a full height MFD to give the option to enable or disable. If there is no full height MFD the system will still operate correctly but to enable or disable you will need to use Vagcom/VCDS.

If the car is fitted with an alarm and the interior sensors these will need to be disabled by pressing the button on the B pillar before locking the car as operation of the sunroof and windows may activate the alarm.

The wiper stalk may need to be in the automatic/intermittent position to operate.

Step 1 – Enable Auto Rain Closing

  1. Open the Central Electronics Controller (09) and click on the “Coding” option.
  2. Click the drop down box and choose the RegenLichtSens (RainLightSensor)
  3. Note the software coding (00)208933) (most cars have different codings)
  4. Convert to Hex (0)3 30 25
  5. Add 4 to the left hand value Hex (0)7 30 25
  6. Convert to Decimal (00)471077 and replace the old coding.

If you’re unclear on the conversion steps see the Decimal to Hex and Hex to Decimal conversion guide.

Step 2 – Enable Menu to Enable/Disable (optional)

  1. Open the Comfort System Controller (46)
  2. In long coding change Byte 09 to Hex 02

13 90 06 88 51 03 48 3F 2D 04 05 8F B0 08 0A 04 88 9C 00
13 90 06 88 51 03 48 3F 2D 02 05 8F B0 08 0A 04 88 9C 00

The menu will now give you the option to turn on or off the Rain Closing Feature.


To test wind down the windows and open sunroof if fitted, lock the car. Wait around 2 minutes and pour some water on the rain sensor (mounted on the glass behind the rear vision mirror) and after a short delay the windows and sunroof will close.


There are really no issues with enabling this feature. There have been a few reports of people getting a fault appearing in their Central Electronics Controller (09) from time to time “02071 – Local Databus- 004 – No Signal/Communication – Intermittent” but the system operates correctly and for some people depending on the revision of the RegenLichtSens where it just doesn’t operate.

Volkswagen Golf Reverse Camera Upgrade RNS510

Update: Installing a Golf Mark VI Rear View Camera (RVC) into a Golf Mark V

The Golf can have the factory reverse system from other models (generally Tiguan 5N0) installed, there are a few caveats that must be checked first as some components in the car must be a particular revision or higher.

Gateway needs to be 3C0 907 530 H or higher. For the Tiguan or Passat controller you need to use a 9-byte long CAN gateway (L or N at the end), the Touareg controller may only require a 8 byte controller.

Kufatec sell a harness that connects the RNS510 to the reverse camera controller for 89 euros.

Parts required for install (not using the hatch/boot release detailed below)

Reverse Controller Tiguan- 5N0907441
Reverse Controller Toureg – 7L6907441B (not recommended)
Reverse Controller Holder – 5N0909537A
Camera – 5N0980551A
Cable for Camera 3M – 000098654A

Using VCDS/Vagcom you need to code the CAN gateway (19), the RNS510 (37 or 56), the RVC controller with 0010007 and then perform a camera calibration.

Camera mounting option – rear hatch/boot release

Integrating the camera into the rear pop up hatch release has been a project I’ve been looking into for a while, this is now made easier by the release of the MK6 Golf as this has a camera integrated into the hatch release.

Part Numbers

Golf 6 hatch release – 5K0 827 469J
Passat CC boot release – 5K0 827 469H

Mounting gasket is the same for Golf 6, Passat CC and Golf 5. Switch for the hatch/boot release is the same as well.

Both Golf 5 and Golf 6 use the Q CANBUS gateway.

Using an aftermarket reverse camera with the RNS510

I’m currently working on this as part of another project so the information here is sketchy for the time being.

In the Radio Configuration II there is a Byte 3, Bit 6 (Backup Camera Low – without control module)

RNS2 and RNS510 Connector Differences
RNS2 and RNS510 Connector Differences

Volkswagen Golf GTI and R32 Tyre Pressures

GTI 225/45/17Front  Rear  
Standard Load2402,434.82402,434.8
Heavy Load2602,637.73003,043.5

R32 225/40/18Front  Rear  
Standard Load2802,840.62802,840.6
Heavy Load3003,043.53203,246.4

GTI Front Rear
Standard Load 240 2,4 34.8 240 2,4 34.8
Heavy Load 260 2,6 37.7 300 3,0 43.5
R32 Front Rear
Standard Load 280 2,8 40.6 280 2,8 40.6
Heavy Load 300 3,0 43.5 320 3,2 46.4

Volkswagen Golf Automatic Hatch Opening

(This mod has turned out to be unreliable over time as the springs compress – a new mod using replacement struts and bumpers supercedes this one –  Volkswagen Golf Automatic Hatch Opening Updated)

Automatic opening of your Volkswagen Golf rear hatch is possible with a few easy changes. Not all cars will work so try the first part requiring VCDS/Vagcom before proceeding.

In VCDs/Vagcom change Byte 2 Bit 3 in the Central Convience Controller 46.

Once this is done when you press the hatch open button on the remote the hatch will pop out about 10mm. If this works then proceed to adding the springs.

Springs for hatch
Springs for hatch
Alternative springs for hatch
Alternative springs for hatch

The springs on the left of the first photo are the correct ones to use with a size of 31.77mm long, 17.4mm wide and a spring wire thickness of 2.2mm, these were available from Mitre 10 and Bunnings along with other hardware stores in Australia but they are hard to find now in some areas. The spring on the right of the first photo cut into two is not suitable, it didn’t quite have the power required to keep popping the hatch.

The second photo is of a new spring stocked at Bunnings from the Century Spring Corp, the C-712 is very close to the specifications of the first spring at 31.75mm long, 17.475mm wide and a spring wire thickness of 2.337mm. The spring retails for AUD$4.75.

Warning, when you pop the strut off in the next step make sure you have an assistant or a broom or similar to hold the hatch up as it will drop and it’s very heavy.

Clip removal
Clip removal

Lever the clip back with a flat head screwdriver, don’t pop the clip completely off as it will be very hard to get back on. It takes a little force to pop the socket off.

End of strut
End of strut

This is the end of the strut with the end of the strut removed. To remove this use two pairs of vise grips and either plastic or a towel to protect the surface of the strut shaft and the end of the strut. Carefully remove the end piece and put to the side.

End of strut removed
End of strut removed

The end of the strut removed.

New spring and old spring
New spring and old spring

The new spring is on the left and the old one on the right.

Spring before installation
Spring before installation

New spring before installation, the old spring actually fitted perfectly into the end of the strut, the new one requires some crimping of the end as pictured to reduce the outside diameter and it’s now a snug fit into the end of the strut.

Spring in end of shaft
Spring in end of strut

The cap on the end of the shaft has been removed, using some pliers with a towel this doesn’t take a lot of strenght to remove.

The spring is now slid down and sits nicely in the end of the strut.

Spring in end of strut
Spring in end of strut

The spring should hold in the end of the strut by itself.

Cover back over the end of the strut
Cover back over the end of the strut

The cover install over the end of the spring and strut. Put silicon over the outside of the strut but make sure not to get it on the strut shaft as there may be some issues that arrise from silicon in that area. The cap will be a firm fit.

Follow the above instructions in reverse to refit. Then repear for the other side of the car.

All going well you should now have auto hatch opening.

Interesting features on the MKV Golf

  • Climate control system switches into recirculated air mode when reverse is selected and when you activate the wipers to prevent exchaust gas and the smell of the windscreen cleaner from being distributed in the cabin.
  • Headlights turn on when you exceed 140km/h.
  • Headlights will stay on until the car comes to a complete stop even if the engine is turned off.
  • Rear wiper activates automatically when you put the car in reverse and it’s raining.
  • Front wipers change position every time you switch off the car to avoid having the blades leaning in the one direction all the time and extending their life. There are 4 positions that they park in.
  • At speed the front wipers tuck in to increase aerodynamic efficiency.
  • Permanent vertical illumination of the controls via the interior LED lights was the resut of a study with the Technical University of Darmstadt in Germany which found found that certain light sources in the interior can increase active safety when driving at night. The eyes can adjust more quickly to changes when switching from the road to the interior. This is especially important with dark headlining like the GTI.