Retrofit: Front Parking Sensors with OPS

MT-V6 · Jun 17, 2018

OPS is Optical Parking System, which means you get a visual diagram of objects around the car. Front parking sensors and OPS were never available on the TT from the factory. Having rear parking sensors is a prerequisite for this guide. Details on retrofitting them are here, but use the information on module and canbus from this guide. A MK2 RNSE is required for OPS.

If you have a 8P0 919 475 park assist module (around 2009 onwards) this will be simpler as the powertrain canbus will already be present. I didn't, so had to wire that up.

Parts required:

Code:

4H0 919 275                      | Ultrasonic parking sensor (90 degree connector) x2
4H0 919 275 A                    | Ultrasonic parking sensor (straight connector) x2
1T0 919 133 C                    | Sensor sealing rings (satin black or grey available) x4
5J6 919 485 B                    | Skoda brackets x4

4H0 973 703                      | 3 pin connector (for sensors) x4
000 979 034 E / TE 1670146-1     | Wire set with clamp pins x6 (12 pins)
TE 1394133-1                     | Wire seals x12

8W0 972 112 A                    | 12 pin connector (brown) (for control module)
000 979 009 E / TE 144969-1      | Wire set with square pins x4 (8 pins)

8P0 919 475 H                    | Park control module (ETKA shows revisions N and Q too)

423 927 137 J 5PR                | Button (ESP, spoiler, PDC) (diff one needed for mag ride/TPMS)
000 979 009 E / TE 144969-1      | Wire set with square pins x1 (2 pins)

8E0 919 279                      | Buzzer
4B0 972 623                      | 2 pin connector (for buzzer)
000 979 009 E / TE 144969-1      | Wire set with square pins x1 (2 pins)

Wire - 0.35mm² thin wall

Wiring

Park assist control module connector A (T16e) (16-pin)
Pin 1 > Fuse 7 in dash fuse box (5A) (positive, ignition live)
Pin 2 > Rear buzzer (H15), pin 2
Pin 3 > Fuse 5 in boot fuse box (5A) (positive, permanent live)
Pin 4 > Centre console parking aid button (see below)
Pin 6 > CAN gateway, pin 16 (orange/black) (powertrain CAN high)
Pin 8 > Earth
Pin 10 > Rear buzzer (H15), pin 1
Pin 13 > Centre console parking aid button warning lamp (see below)
Pin 15 > CAN gateway, pin 6 (orange/brown) (powertrain CAN low)

Park assist control module connector B (12-pin)
Pin 1 > All parking aid sensor pins 3 (earth)
Pin 2 > All parking aid sensor pins 1 (positive?)
Pin 3 > Front buzzer (H22), pin 2
Pin 4 > Front buzzer (H22), pin 1
Pin 5 > Front left parking aid sensor (G255), pin 2 (signal?)
Pin 6 > Front centre left parking aid sensor (G254), pin 2 (signal?)
Pin 7 > Front centre right parking aid sensor (G253), pin 2 (signal?)
Pin 8 > Front right parking aid sensor (G252), pin 2 (signal?)

Centre console buttons connector (T16b) (16-pin)
Pin 8 > Splice into pin 2 (brown) (earth)
Pin 9 > Park assist control module connector A (T16e), pin 13 (parking aid button warning lamp)
Pin 13 > Park assist control module connector A (T16e), pin 4 (parking aid button)

If you don't currently have a 475 module, you will need to splice into the powertrain canbus at the gateway. My blue and yellow wires can be seen in the right of this photo. They should be twisted all the way back to the parking module to avoid interference

Wires routed from module through the boot...

...and then wrapped in cloth tape and cable tied to existing wiring

Wires routed under rear bench and through centre console

The new parking sensor button (top) and my existing one (bottom). Will vary if you have TPMS and/or mag ride

Parking button wires. Notice the earth which I spliced into an existing one. Not sure why the buttons don't share an earth anyway

Parking button fitted

The is nowhere OEM to mount the front buzzer. I cable tied it to the top of the air conditioning ducting. In the A3 and R8, the front buzzer is located in this area

I poked the sensor wires through the existing firewall grommet. There are too many to easily use an existing hole (the blue one is for cruise control)

I wrapped them in cloth tape and routed them under the airbox where there are existing wires

I used a connector between the car loom and the bumper to make the bumper easier to remove and fit in future. I used a 14 pin connector but only 6 pins are required

The pins to the sensors need to be sealed as they will be exposed (the blue part)

The wires can be routed in the same way as the washer jet hose (which is under the centre grille)

I cut the sensor holes with an 18.2mm hole cutter (Sealey VS318)

Some of the double skinned part under the washer jet mounting will need to be trimmed away for the bracket to be able to mount to the external bumper cover

The straight connector sensors need to be fitted to the outer two sensors under the washer jets as otherwise there isn't space for the connector (ignore the 90 degree one in the above photo as that was a test fit before I realised)

The foam behind the bumper will need to be trimmed for the centre two sensors so that the bumper will refit properly

I roughed the surface with some sandpaper so that the sensor brackets would stick better

The finished job (before fitted fog grilles)

OPS on the RNSE

Parking buzzer settings move to the RNSE when OPS is enabled, rather than the DIS

Coding

19-CAN Gateway - Installation List

Enable '10 - Park/Steer Assist'[/*]

10-Park/Steer Assist - Coding

Byte 0, bit 4 - enable 'Optical Illustration active'[/*]

37-Navigation
Coding:

0x?xxxx: Treble Speaker Diagnosis / Optical Parking Aid
- +2 = Optical Parking Aid installed/active[/*]
[/*]

MT-V6 · Jun 17, 2018

Following on from fitting rear parking sensors, I am now in the process of getting everything together to fit front ones (as in the A3/R8) which uses the same parts etc. I hope to get the Optical Parking System working on the RNSE.

I'll put notes in this thread and eventually write a guide.

ldhxvs · Jun 20, 2018

I look forward to hearing how you get on with this

efunc · Jun 20, 2018

After much consideration I've decided to allow you to use my car as the test subject

MT-V6 · Jun 20, 2018

efunc said:
After much consideration I've decided to allow you to use my car as the test subject

For drilling holes in the bumper, I presume!

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efunc · Jun 21, 2018

MT-V6 said:
efunc said:

After much consideration I've decided to allow you to use my car as the test subject

Click to expand...

For drilling holes in the bumper, I presume!

To begin with...

...before completing the full installation

:wink:

seriously, I look forward to your results. Hope it all goes according to plan.

MT-V6 · Jun 24, 2018

I've more progress, with the button now fitted to the centre console. Since front sensors were never available for the TT, this is a left hand drive R8 part (RHD R8 ESP and spoiler buttons are the opposite of the TT). It's held in with 2 T10 torx screws from underneath.

I fed the wires from this with the powertrain CAN wires from the gateway (behind the glovebox) through the centre console, under the rear bench and into the boot. Once I've fed the front buzzer and front sensor wires through I'll tape them up, but this is how it looks for now.

An extra benefit is that the facelift R8 switch has the gloss black parts that my original switch didn't have

SwissJetPilot · Jun 24, 2018

Guess I won't be doing this mod in my 3.2 Quattro. My buttons are all taken! From left to right I have, AMR, ESP, Emergency Flasher, Spoiler and TPM.

BTW - I checked the tool you linked (Sealey VS318) for making the holes in the bumper - it looks like this. I didn't realize it was a specific ø18.2-mm. Sure beats trying to make those holes with a drill!

MT-V6 · Jun 24, 2018

Yes luckily I don't have TPMS, however switches from other Audis would probably work and you may be able to get a standalone one to fit somewhere

SwissJetPilot · Jun 25, 2018

When you get around to doing it, can you include a few photos of how the sensors are installed in the bumper and how you retain the wire loom to the bumper? Also, how and where do you route the wires from the bumper, through the vehicle and to the Controller? I was curious about all that from your previous post.

MT-V6 · Jun 25, 2018

Sure, I plan to go through the firewall through the main grommet in the passenger footwell. Need to work out how to get from there in the engine compartment (under airbox) to the bumper

Fitting the sensors properly will be in a while as I would like a facelift S-line front bumper and only want to drill holes in one

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MT-V6 · Jun 25, 2018

Routing for sensors will be through centre console with the other wires as above for simplicity, otherwise would have gone down one side of the car

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MT-V6 · Jul 1, 2018

I've made good progress over the past few days, it's not a job for the faint hearted that's for sure! Lots of wiring and dismantling is required but it paid off this evening when:

This shows the cables loosely in the boot:

And after being tidied up:

Daz1968 · Jul 1, 2018

Well done, can't wait to see the guide on this as it's something I would be interested in trying, I noticed some of the correct switches on German ebay, not too bad on price. Not sure if they would ship to uk, but would be worth an ask.
I have seen the inner front sensors mounted within the grill, is this how you will do them.

MT-V6 · Jul 1, 2018

I got this switch from a German seller, it has to be a LHD country so they won't be available in the UK, unless you don't mind the buttons being swapped around

Next challenge is getting the sensors fitted to the front but for that I want to wait until I have an S-line bumper, so might be a while

I plan to put them next to the grille as I will probably get an RS grille at some point and then they won't fit. Something like this (this car belongs to 'Spike' from the TTOC):

ReTTro fit · Jul 1, 2018

MT-V6 said:
Yes luckily I don't have TPMS, however switches from other Audis would probably work and you may be able to get a standalone one to fit somewhere

Upgrade to later TPMS
The button isn't required as it's all done through the dis

Sent from my iPhone using Tapatalk

MT-V6 · Jul 1, 2018

ReTTro fit said:
MT-V6 said:

Yes luckily I don't have TPMS, however switches from other Audis would probably work and you may be able to get a standalone one to fit somewhere

Click to expand...

Upgrade to later TPMS
The button isn't required as it's all done through the dis

Sent from my iPhone using Tapatalk

I did think about that, does it require upgrading the ABS module?

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ReTTro fit · Jul 1, 2018

Yes it would depend which module you had

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Wolvez · Aug 14, 2018

MT-V6 said:
I've made good progress over the past few days, it's not a job for the faint hearted that's for sure! Lots of wiring and dismantling is required but it paid off this evening when:
View attachment 2

Does the Parking module have video output connected to the head unit? Where is the parking button connected? Does your RNSE have built-in TV tuner? What happens when you press the Media button? Just wondering if the function is the same on RNSE with CD/SD instead of Media button.

MT-V6 said:
ReTTro fit said:

MT-V6 said:

Yes luckily I don't have TPMS, however switches from other Audis would probably work and you may be able to get a standalone one to fit somewhere

Click to expand...

Upgrade to later TPMS
The button isn't required as it's all done through the dis

Sent from my iPhone using Tapatalk

Click to expand...

I did think about that, does it require upgrading the ABS module?

Sent from my SM-G950F using Tapatalk

If your ABS module optional equipment code is 1AT, only requires coding to activate Hill Hold Assist & Indirect TPMS.
1AS is not supported.

barry_m2 · Aug 18, 2018

Do you know if any revisions of the control module 8P0 919 475 * will work?

Also, are there any powertrain canbus wires in the boot you can tap into?

MT-V6 · Aug 19, 2018

barry_m2 said:
Do you know if any revisions of the control module 8P0 919 475 * will work?

Also, are there any powertrain canbus wires in the boot you can tap into?

No, only specific ones will work, and they require all 8 sensors to be connected. I used 8P0 919 475 H, which was replaced with N then Q revisions. H replaced A and D so they should be too, though not sure if the earlier ones support OPS

There are no powertrain canbus anywhere near the middle or rear of the car unfortunately so I got it from the gateway and fed the wires through the centre console, with the sensors and button

barry_m2 · Aug 20, 2018

MT-V6 said:
barry_m2 said:

Do you know if any revisions of the control module 8P0 919 475 * will work?

Also, are there any powertrain canbus wires in the boot you can tap into?

Click to expand...

No, only specific ones will work, and they require all 8 sensors to be connected. I used 8P0 919 475 H, which was replaced with N then Q revisions. H replaced A and D so they should be too, though not sure if the earlier ones support OPS

There are no powertrain canbus anywhere near the middle or rear of the car unfortunately so I got it from the gateway and fed the wires through the centre console, with the sensors and button

Brilliant, thanks mate.

Where did you source all your parts from.. sensors, connectors etc...?

MT-V6 · Aug 20, 2018

Module from eBay, the 8 sensor ones aren't too common unfortunately. Sensors from eBay, really common as they are on loads of VAG cars, beware the Chinese ones. Connectors from Audi and pins from RS components.

I keep meaning to write it up but was going to wait until I fit the new front bumper

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MT-V6 · Aug 20, 2018

Also a MK2 RNSE is required for OPS

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barry_m2 · Aug 20, 2018

MT-V6 said:
Module from eBay, the 8 sensor ones aren't too common unfortunately. Sensors from eBay, really common as they are on loads of VAG cars, beware the Chinese ones. Connectors from Audi and pins from RS components.

I keep meaning to write it up but was going to wait until I fit the new front bumper

Yeah, the modules seem very few and far between! I'll do what you done I think and gather all the parts and just stick with the rears for now, then do it as and when I have everything.

Looking forward to the write up!

Oh, and yes, I have the newer rnse.

Wolvez · Aug 20, 2018

I really want to install this before I saw a cheap Bird Eye View 360 degrees panoramic camera with DVR..

Retrofit: Front Parking Sensors with OPS

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