C5 X7 Tourer 2.2HDI/170 - towbar installation again

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navnet
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C5 X7 Tourer 2.2HDI/170 - towbar installation again

Unread post by navnet »

Hello everyone.

I am installing a towbar to my C5 x7 2.2HDI/170 and I have a few questions. I bought a new towbar, which according to the catalog fits all C5 X7 Tourers, except "GT 2.2 HDI". I do not know the "GT" version with this engine, but I noticed what the problem is. The left bracket (marked with an arrow in the photo below) originally almost touches the muffler.

Image

The towbar manufacturer wrote in the instructions "one exhaust pipe", but I assumed that he meant the version with a wide muffler and two exhaust pipes on both sides of the rear of the car. To prevent the vibrating muffler from hitting the towbar, I modified the bracket by bent on a press brake (8mm thick sheet metal) and everything fits.

Image
Image

I would like to ask about the electrical installation. I bought a used BSC A0100 module and I want to use it, using the 6-pin electrical connector and the adapter for the module. Please help me determine whether BSC 0100 will work with my BSI. VIN: VF7**************[VIN obfuscated, can be read by forum staff] and what is the correct wiring diagram for this VIN.

Image
Image

Please also advise whether the module can directly power the "stop" lamp in the trailer from output 6 (21A0), or does it have to be a relay (the famous double relay 8801 on the wiring diagram).

I will add that the car will only tow standard trailers with a 13-pin plug, so +12V is not needed.
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wurlycorner
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Re: C5 X7 Tourer 2.2HDI/170 - towbar installation again

Unread post by wurlycorner »

Hi
What brand of towbar did you buy and how did you get on with this installation in the end (electrics and bumper fit)?

I'm looking into fitting a towbar to my X7 3.0 V6 and - in reference to the first part of your post - as far as I can make out online, the 3.0 V6 and 2.2 HDi need a different towbar to all the rest of the range - because of the exhaust being different on those two engines and/or because of the battery being in the boot (rather than in the engine bay).
Given you had a clash, I assume you bought a towbar for all the other models and have evidently then worked your way round the clash?

The 3.0/2.2 towbars seem to cost more than the model that fits all the rest of the range. I bet they justify that by lower volume of sales for that type, but it's annoying, because I suspect (?) the design that fits the 3.0 and 2.2 WOULD fit the rest of the range - so they should have dropped the original design and just gone with the second revised design for all, to get volume up and price down!
--
Iain

'85 CX GTi Turbo s1 (met. blue)
2x '85 CX GTi Turbo s2 t1 (met. silver & grey)
'88 CX GTi Turbo s2 T2 (met. light blue)
CX DTR T2 Safari (silver)
2x '96 Xantia Activa (Black & met. green)
'01 C5 2.0 HDi LX Estate (Blue)
'11 C5 X7 3.0 V6 Exclusive Tourer
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GiveMeABreak
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Re: C5 X7 Tourer 2.2HDI/170 - towbar installation again

Unread post by GiveMeABreak »

navnet wrote: 19 Dec 2024, 22:52 Hello everyone.

I am installing a towbar to my C5 x7 2.2HDI/170 and I have a few questions. I bought a new towbar, which according to the catalog fits all C5 X7 Tourers, except "GT 2.2 HDI". I do not know the "GT" version with this engine, but I noticed what the problem is. The left bracket (marked with an arrow in the photo below) originally almost touches the muffler.

The towbar manufacturer wrote in the instructions "one exhaust pipe", but I assumed that he meant the version with a wide muffler and two exhaust pipes on both sides of the rear of the car. To prevent the vibrating muffler from hitting the towbar, I modified the bracket by bent on a press brake (8mm thick sheet metal) and everything fits.

I would like to ask about the electrical installation. I bought a used BSC A0100 module and I want to use it, using the 6-pin electrical connector and the adapter for the module. Please help me determine whether BSC 0100 will work with my BSI. VIN: VF7**************[VIN obfuscated, can be read by forum staff] and what is the correct wiring diagram for this VIN.

Please also advise whether the module can directly power the "stop" lamp in the trailer from output 6 (21A0), or does it have to be a relay (the famous double relay 8801 on the wiring diagram).

I will add that the car will only tow standard trailers with a 13-pin plug, so +12V is not needed.
Sorry, only just seen this post. I can only provide you with the official Towbar and Official Electrical Harness part numbers that are listed for the specific vehicle. The electrical harness will include the BSU (trailer Fuse Box) that is specific for the vehicle being fitted.

The 13 Channel Electrical Harness is part: 9428F6 and includes the relevant Trainer Fuse box in the kit.
The Fuse box is available separately and is part: 9688EL.

This is the Sales info provided for the electrical Harness 9428F6:
  • This harness is particularly suitable for providing the lighting supply to trailers or cycle-carriers on tow bars.
  • This harness has been developed to incorporate all of the vehicle special features.
  • It also provides an electrical supply to the fog lights and reversing lights.
  • Comes with a 13-way socket to correspond to the trailer socket.
  • It incorporates all the features needed for good compatibility with this vehicle and is SAFE, RELIABLE and EASY to fit.
  • The functionality of the harness will be obtained by configuration of the BSI (fitting by the network is imperative).
Please Don't PM Me For Technical Help

Marc
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GiveMeABreak
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Re: C5 X7 Tourer 2.2HDI/170 - towbar installation again

Unread post by GiveMeABreak »

wurlycorner wrote: 13 Jan 2025, 14:42 Hi
What brand of towbar did you buy and how did you get on with this installation in the end (electrics and bumper fit)?

I'm looking into fitting a towbar to my X7 3.0 V6 and - in reference to the first part of your post - as far as I can make out online, the 3.0 V6 and 2.2 HDi need a different towbar to all the rest of the range - because of the exhaust being different on those two engines and/or because of the battery being in the boot (rather than in the engine bay).
Given you had a clash, I assume you bought a towbar for all the other models and have evidently then worked your way round the clash?

The 3.0/2.2 towbars seem to cost more than the model that fits all the rest of the range. I bet they justify that by lower volume of sales for that type, but it's annoying, because I suspect (?) the design that fits the 3.0 and 2.2 WOULD fit the rest of the range - so they should have dropped the original design and just gone with the second revised design for all, to get volume up and price down!
Iain

The specific harness for your vehicle is part: 9428F8 (Different to the other person above).
Swan's Neck Towbar is part: 9427CX
Towbar that can be removed without Tools is part: 9427EA

Trailer Fuse box is as I mentioned in the earlier post - compatible with the vehicle's ESP systems that enables a special mode when towing.
Please Don't PM Me For Technical Help

Marc
wurlycorner
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Re: C5 X7 Tourer 2.2HDI/170 - towbar installation again

Unread post by wurlycorner »

Thank you Marc, much appreciated.
--
Iain

'85 CX GTi Turbo s1 (met. blue)
2x '85 CX GTi Turbo s2 t1 (met. silver & grey)
'88 CX GTi Turbo s2 T2 (met. light blue)
CX DTR T2 Safari (silver)
2x '96 Xantia Activa (Black & met. green)
'01 C5 2.0 HDi LX Estate (Blue)
'11 C5 X7 3.0 V6 Exclusive Tourer
TwoSee5s
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Joined: 23 Apr 2025, 18:39
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Re: C5 X7 Tourer 2.2HDI/170 - towbar installation again

Unread post by TwoSee5s »

I have finished tow bar instalation on my 3.0hdi tourer TWIN EXHAUSTS......Brink part no. 482100 bought from PF Jones fits superbly.
I spent months of being told no towbar available and ours might fit but we havent seen that model.
Hope this helps.
Also my exhaust box hangers were very corroded part no.1755RS..got 2 on Autodoc part 231-950 1/3 of price from citroen
wurlycorner
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Re: C5 X7 Tourer 2.2HDI/170 - towbar installation again

Unread post by wurlycorner »

That’s good news and thanks for the update.
--
Iain

'85 CX GTi Turbo s1 (met. blue)
2x '85 CX GTi Turbo s2 t1 (met. silver & grey)
'88 CX GTi Turbo s2 T2 (met. light blue)
CX DTR T2 Safari (silver)
2x '96 Xantia Activa (Black & met. green)
'01 C5 2.0 HDi LX Estate (Blue)
'11 C5 X7 3.0 V6 Exclusive Tourer
Repmoj
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Joined: 01 Apr 2025, 11:47
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Re: C5 X7 Tourer 2.2HDI/170 - towbar installation again

Unread post by Repmoj »

Thanks for that update. I have the twin exhaust 2.2 diesel and also came to the conclusion (after a ton of googling) that the Brink 482100 should fit. I still haven't found the correct harness though... Shame that the parts finding service stopped just as I bought the car.