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C4 - DS4 Owners :: Forums :: Citroen C4 Picasso and Grand C4 Picasso (B78) 2013 onward :: C4 Picasso (B78) General Questions

Help with dad's bike rack and towbar reversing sensors

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KAR   
Thu Sep 17 2020, 03:59am
Member No: #56915
Joined: Sep 17 2020
Location: Wales
My dad has a 2016 C4 Picasso 5-seater. He used to carry his bike on a rear-door mounted cycle carrier on his previous car a Xsara Picasso. But we can't find a rear-mounted carrier for the C4 Picasso. I even asked Citroen and they said there isn't a suitable carrier because the rear glass doesn't have a metal edge. My first question to this forum, has anyone got a rear mounted carrier for a C4 Picasso and if so where can we get one from?

Having failed to find a rear mounted carrier dad is now looking at fitting a towbar for a towbar mounted cycle carrier. The local towbar fitter said a fixed towbar will cost £300 with bypass electrics and there's a 50/50 chance it'll set-off the reversing sensors in reverse. Dad is 79 and relies on the reversing sensors so we need them working. So my second question to the forum is: has anyone had a fixed towbar with bypass electrics fitted to a C4 Picasso 5-seater and did it set off the reversing sensors? Was it a flange or swan neck towbar?

The towbar fitter said they can fit a fixed towbar with dedicated electrics for £490 which will avoid the reversing sensor problem. But £490 is a lot of money and we've got to buy the cycle carrier too. A slightly cheaper option is a detachable towbar for £460 but dad is 79 and would struggle to bend down to fit and remove a detachable towbar.

Any help or suggestions would be really appreciated. Thank you.
BigJohnD   
Thu Sep 17 2020, 04:32am

Member No: #82
Joined: Jan 22 2007
Location: Hoylake
You've answered you own question. You need the dedicated interface for the system to work as you want. The by-pass system is just that - it by-passes the car's CANBus which is used for such error messages.

FrankBullitt   
Thu Sep 17 2020, 01:47pm

Member No: #19238
Joined: Apr 12 2011
Location: Cambridgeshire
BigJohnD wrote ...

You've answered you own question. You need the dedicated interface for the system to work as you want. The by-pass system is just that - it by-passes the car's CANBus which is used for such error messages.

Not strictly true!

The reverse sensors will work as normal with a fixed swan-neck, it won’t set them off with just the bar fitted.

If you go dedicated the car will ‘sense‘ the bike rack is fitted on the tow bar (as the electrics for the lights will be fitted) so de-activate the sensors when in ‘towing’ mode

If you go for a bypass relay you need to manually turn the sensor off when reversing - if you don’t they’ll ‘see’ the bike on the rack and scream like mad!

Bypass installed by an experience fitter isn’t an issue, especially for a bike rack.
 

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