Retrofit: Rear Parking Sensors

MT-V6 · May 26, 2017

This was a fairly simple retrofit, with the biggest part required being the replacement rear bumper. I took the opportunity to upgrade to a facelift rear bumper and diffuser, which came with sensors and sensor loom. This was on my 2007 V6 TT.

Note: this guide covers fitting an early module (part numbers ending 283, the later ones 475). Early modules are on address 76 and use the convenience CAN, compared to 10 and the powertrain CAN for the later ones. I believe the changeover was in late 2008, so before the facelift happened.

Parts required:

Code:

4H0 919 275       | Ultrasonic parking sensor x4
1T0 919 133 C 9B9 | Sealing rings (satin black) x4 (also available in other colours)

8J0 971 085 D     | Loom for parking sensors x1
     or
3C0 973 203       | 3 pin connector (for sensors) x4
8E0 972 112       | 12 pin connector (for control module) x1

8E0 972 416 A     | 16 pin connector (for control module) x1
000 979 009 E     | Wire set with square pins x4 (7 pins)

8P0 919 283 D     | Park assist control module (J446) x1

8E0 919 279       | Buzzer x1
4B0 972 623       | 2 pin connector (for buzzer) x1
000 979 009 E     | Wire set with square pins x1 (2 pins)

000 979 009 E     | Wire set with square pins (for central convenience control module marked * below) x1 (2 pins)
                  | Piggy back blade fuse holder with 5A fuse x1
                  | Piggy back mini blade fuse holder with 5A fuse x1

                  | Wire - 0.35mm² thin wall
                  | Eyelet ground terminal x1

Wiring

Since the bumper came with the sensor loom, I didn't have to make that up and I could simply plug it in the new module. The easiest way to tap into the convenience CAN is into the central convenience control module, which is also convenient in its location just under the parking module.

The permanent live feed is taken from the boot fusebox. The drivers sill trim pulls firmly upwards and is only clipped in. The rear seat bench should also be pulled up and removed along with the drivers side boot trim (requiring the rear boot trim, parcel shelf, boot floor and boot foam). This should give plenty of access to run the wires.

I wrapped all my wires in cloth tape and cable tied them to prevent rattles.

Park assist control module connector (A) (T16e) (16-pin)
Pin 1 > Fuse 7 in dash fuse box (5A) (positive, ignition live)
Pin 2 > Buzzer, pin 2
Pin 3 > Fuse 5 in boot fuse box (5A) (positive, permanent live)
Pin 7 > Central convenience control module block C, pin 10 (convenience CAN low - orange/brown wire) (already in use, need to splice) *
Pin 8 > Earth
Pin 10 > Buzzer, pin 1
Pin 14 > Central convenience control module block C, pin 9 (convenience CAN high - orange/green wire) (already in use, need to splice) *

Wired to dashboard fuse box for ignition live:

Spliced into convenience CAN (brown and green wires):

Connector wired up:

Ready to connect:

The module can be seen here on the right with the brown connector. The fuse tap for permanent live can also be seen:

The buzzer mounts into the rear right speaker area, seen below the tweeter here:

And from the front (with the speaker grille removed):

Coding

19-CAN Gateway - Installation List

283 modules - Enable '76 - Park Assist'
475 modules - Enable '10 - Park/Steer Assist'

76-Park Assist
Coding:

00?xxxx: Trailer Hitch
0 = Trailer Hitch not installed
1 = Trailer Hitch installed
00x?xxx: Transmission
0 = Manual Transmission
1 = Automatic Transmission
00xx?xx: Specification
0 = Rest of World (RoW)
1 = Rest of World (RoW) S/RS
2 = North America (NAR)
3 = North America (NAR) S/RS
00xxx?x: Chassis
0 = Sedan
1 = Avant (Wagon)
2 = Cabriolet
3 = Coupé
5 = Sports Car (R8 only)
00xxxx?: Model
1 = Audi TT (8J) / Audi R8 (42)
3 = Audi A3 (8P)

More details here

Note: 10-Park/Steer Assist uses long coding

You will now be able to adjust the volume and frequency in the DIS:

Lyons · May 27, 2017

A replacement rear bumper isn't required. The inside of the bumper is marked where the sensors should go. I drilled mine.

MT-V6 · May 27, 2017

True, although I heard it wasn't possible to buy the brackets separately?

Sent from my Nexus 5 using Tapatalk

MT-V6 · May 18, 2018

I'm in the process of gathering the parts required to fit front sensors, and now realise that the later modules don't use the convenience CAN bus but instead use the powertrain CAN bus. The pins for these differ, but everything else is the same. The downside being that it was easy to splice into the convenience CAN bus from the central convenience module, whereas drivetrain will probably need to come from the CAN gateway (might be somewhere else nearer, need to check).

Also the early modules are on address 76 compared to 10 for the later ones. The early modules have part numbers ending 283, the later ones 475. I believe the changeover was in late 2008, so before the facelift happened.

Not sure how the coding differs yet until I get my new module fitted.

MT-V6 · May 28, 2018

At around the time of the module changeover, the rear sensors wiring also changed, with all sensors sharing sensor pins 1, and pins 3. However, I used a newer sensor loom on my older parking module and it worked fine, I think it is just the positive and earth that has been combined, with each sensor having an individual data wire still.

barry_m2 · May 29, 2018

Be interested to see this working mate (fronts), I may do the same.

tttony · May 29, 2018

Good write up and great quality pictures.

Did you investigate the possibility of inserting the relevant size connectors into the back of the fuse box so that an empty space could be used rather than using a piggy-back fuse?

MT-V6 · May 29, 2018

barry_m2 said:
Be interested to see this working mate (fronts), I may do the same.

I got the new module connected the other day, with wired draping from the CAN gateway into the boot for the powertrain CAN bus required for the newer modules. Had a play with VCDS but weirdly couldn't set it to be RHD, or to the TT (S3 and R8 work). However it is complaining about lack of front sensors and front buzzer so that's the next thing to do. I have them but need to get the connectors and run the wires (it needs lots of wire as it all runs from the boot to the dash/front of car, so might need more of that too)

Will keep this post updated

MT-V6 · May 29, 2018

tttony said:
Good write up and great quality pictures.

Did you investigate the possibility of inserting the relevant size connectors into the back of the fuse box so that an empty space could be used rather than using a piggy-back fuse?

I did look into it when I did the auto lights, however the dash fuse box looks to be a nightmare due to the amount of wires there, and apparently requiring all the fuses to be removed to add new pins. Probably easier in the boot but the piggyback fuses are neat anyway and keeps the new circuit isolated from the original, so better than splicing

bigchunk · Aug 24, 2019

Great write up that i am hoping to be doing myself in a couple of months time, i have a question if anyone can help. I have the 2009 model car, so just wondering if i can follow this exact write up and purchase the parking module used, or do i need to buy the newer module and wire slightly differently?

MT-V6 · Aug 24, 2019

I believe either will work, but make sure you use the correct canbus for the module you use

Do you know which central electric module you have, as this will help clarify if your TT base the newer electrical systems

bigchunk · Aug 25, 2019

MT-V6 said:
I believe either will work, but make sure you use the correct canbus for the module you use

Do you know which central electric module you have, as this will help clarify if your TT base the newer electrical systems

Thanks for the reply, i am at work abroad just now, so not able to check central electric module i have, but i believe it will be the newer one, as the car is a Jan 2009 TTS with the white DIS.

MT-V6 · Aug 25, 2019

I'd probably go with the newer module too then. I can help with part numbers if you need

bigchunk · Aug 26, 2019

MT-V6 said:
I'd probably go with the newer module too then. I can help with part numbers if you need

That would be a great help, also with the newer module am I correct in thinking I could add the front sensors at a later date too?

MT-V6 · Dec 1, 2019

Today I finally moved the rear buzzer into the factory location in the rear right speaker grille, as I originally couldn't find the correct location! Strangely, the plastic spreader rivet in the parts diagram is not used or needed, and is also not mentioned in the workshop manual. I will update the first post

The mounting location is just below the tweeter:

It can be seen fitted here:

Finally, from inside the car (with the speaker grille removed):

JohnnyFarmer · Dec 14, 2019

Some time in the spring I will be swapping from after market PDC to OEM - have the bits including a rear bumper which I need to get painted - Do you know if there is a similar OEM/factory fit place to mount the buzzer in a roadster which does not have the same rear speaker layout as the coupe. 7zap.com does not show it?
If I find it when I get the trim behind the rear seat off will post a picture.

MT-V6 · Dec 14, 2019

I would imagine wherever the rear speakers are in the roadster. Will see if Elsawin has any diagrams

MT-V6 · Dec 14, 2019

Found it

bobbobb · Mar 31, 2020

]so with having not a lot to do started this today. been a spanner man not to good with electrics thought I would ask help.

fitted the bumper complete with factory sensors and pic is of wiring loom 1

guess the module goes here 2

so I need the module is the 283 the best for tt 2009 diesel roadster ?

what other parts do I need ?

module , buzzer and wire im thinking

hope im not a pain

bobbobb · Mar 31, 2020

bobbobb · Mar 31, 2020

bobbobb · Mar 31, 2020

bobbobb · Mar 31, 2020

does the middle plug get used on the module if using this harness and 283 module ?

MT-V6 · Apr 2, 2020

The parts list in in the first post, though I can double check the module. There are 2 versions, 2009 is on the edge of both, though the later module will fit early cars too

You need to wire the module to power, canbus etc too

bobbobb · Apr 4, 2020

well 283 arrived yesterday hope it works ?

MT-V6 · Apr 5, 2020

What is the letter at the end of the part number?

Retrofit: Rear Parking Sensors

Attachments

Attachments

Attachments

Attachments

Attachments

Attachments

Our Vendors

Top Contributors this Month

Recommended Communities