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Old 01-09-2007   #1
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Towbars - here we go again.

Would love a towbar on the back of dobbin but am a little confussed about the electrics (mine's an 06 plate 1.9 jtd).
After reading earlier threads on the subject it all seemed so easy - especially fitting the ironmongery but the electrics...

A DiY towbar offers huge savings over a garage fitted jobbie but looking around the web just serves to confuse matters.

Some makers say I can simply scotchlock the wiring into my existing rear lights (as I have done on many previous motors), others say a 7 way bypass is required and yet others say I need a vehicle specific kit which plugs into various points along the way.

Fiat themselves are neither use nor ornament, they will not tell me what I need - obviously wanting me to buy their overpriced equipment (400) and won't even hint at the wiring - Would it really hurt them?

I know in previous threads users have said they have scotched the wires in but the seeds of doubt have been planted by towbar manufacturers.

Anyone in the know?
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Old 01-09-2007   #2
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Re: Towbars - here we go again.

Some dealers are friendlier than others. Maybe if you try a few more you might find one that's more helpful.
You would think that if there is a proper Fiat towbar wiring kit they could just sell you one.
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Old 01-09-2007   #3
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Re: Towbars - here we go again.

Quote Originally Posted by RichDoblo120 View Post
Some dealers are friendlier than others. Maybe if you try a few more you might find one that's more helpful.
You would think that if there is a proper Fiat towbar wiring kit they could just sell you one.
I agree with the latter, as for friendly dealers... i contacted Fiat UK who, basically, wanted nothig to do with 3rd party towbars & suggested taking the motor to my local dealers

When I contacted my local dealers, all they could suggest was taking dobbin in for them to have a look.

Obviously not prepared to tell me the secret of the Dobbin's leccy.
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Old 01-09-2007   #4
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Re: Towbars - here we go again.

We had one fitted to our doblo by indespension with twin electrics for £215.00
which i thought was not bad, but I know the wiring went up to the middle row of seats and took them about three hours to fit including towbar and electrics.
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Old 01-09-2007   #5
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Re: Towbars - here we go again.

Quote Originally Posted by maisie the ugly bug View Post
We had one fitted to our doblo by indespension with twin electrics for 215.00
which i thought was not bad, but I know the wiring went up to the middle row of seats and took them about three hours to fit including towbar and electrics.
That's not bad. Average DiY job is 100.
I've just had a quote from a 'local' garage for 212. That's a 40 mile round trip & single electrics only!
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Old 01-09-2007   #6
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Re: Towbars - here we go again.

mts towbars about 145 need two way relay on so ecu doesnt put light on dash!!
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Old 01-09-2007   #7
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Re: Towbars - here we go again.

Quote Originally Posted by cphawk View Post
mts towbars about 145 need two way relay on so ecu doesnt put light on dash!!
Looks good, can't find a link on the web though (or am I missing something?)
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Old 03-09-2007   #8
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Re: Towbars - here we go again.

I scotchlocked mine in on my 04 model without any problems, however if you are planning to tow any sort of trailer then you should have a buzzer for the indicators.

The best way to wire any towbar wiring in is through a bypass relay, because you aren't putting a strain on the original wiring + it contains a buzzer for the indicators already. However, if it's only a small trailer with only the basic lights (not caravans with lots of running lights down the sides and up the top) then the scotchlock is fine.
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Old 03-09-2007   #9
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Re: Towbars - here we go again.

Just had another quote - £194 and they come to me to fit.
Where's mts towbars? (and is that £145 fitted?)
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Old 04-09-2007   #10
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Re: Towbars - here we go again.

Quote Originally Posted by Ozzie1989 View Post
I scotchlocked mine in on my 04 model without any problems, however if you are planning to tow any sort of trailer then you should have a buzzer for the indicators.

The best way to wire any towbar wiring in is through a bypass relay, because you aren't putting a strain on the original wiring + it contains a buzzer for the indicators already. However, if it's only a small trailer with only the basic lights (not caravans with lots of running lights down the sides and up the top) then the scotchlock is fine.
Cheers Ozzie & Tango.
Decided to opt for the bypass relay.
If I have to scotch in the wires for the tow socket, I may as well run a cable to pick up 12v & scotch the relay in as I would have had to do anyway.
The company did say that they would recommend a relay but that it wasn't essential for the Dobbin.
Paying just over the ton for bar, ball, bumper protector, electric kit & bypass relay so not too bad.
I reckon it'll take me longer to strip the plastic panels than it will to fit the bar & electrics

ILYKHIGO
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Old 04-09-2007   #11
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Re: Towbars - here we go again.

sludgeguts does the 06 have a bulb failure warning if not you WILL need a 7 way bypass relay talking to a chap at the place i had my bar fitted (he fits them for Jordans of Hull and has an Alfa himself he reckons that fiat wiring is a bit thin to take the extra load of a caravan roadlights as unlike a small trailer they have front marker lights, side markers and more and more have a 3rd brake light.... ergo you risk melting the loom.


hope this Guide i put on the GP section helps helps..

https://www.fiatforum.com/grande-pun...ass-relay.html

(edit to make clear)
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Last edited by Andy Monty; 04-09-2007 at 18:22.
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Old 04-09-2007   #12
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Re: Towbars - here we go again.

Quote Originally Posted by Andy Monty View Post
sludgeguts does the 06 have a bulb failure warning
No idea but other owners say they scotch the wires straight in
Quote Originally Posted by Andy Monty View Post
if not you WILL need a 7 way bypass relay talking to a chap at the place i had my bar fitted (he fits them for Jordans of Hull and has an Alfa himself he reckons that fiat wiring is a bit thin to take the extra load of a caravan roadlights as unlike a small trailer they have front marker lights, side markers and more and more have a 3rd brake light.... ergo you risk melting the loom.


hope this Guide i put on the GP section helps helps..

https://www.fiatforum.com/grande-pun...ass-relay.html

(edit to make clear)
I have spoken with a few manufacturers & resellers now & the majority say it isn't necessary although most would recommend using the bypass. I have opted to install the bypass (see earlier post) just in case I ever tow a caravan - I only really plan to tow trailers & presently on the lookout for a largish box trailer to store some furniture in.
Thanks for the input, I'll have a read of your guide.
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Old 04-09-2007   #13
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Re: Towbars - here we go again.

easy way of testing to see if you have a bulb failure system pull a side lamp/ indiator/brake light bulb and activate the light you should get a amber lightbulb with an sun burst pattern symbol on your dash it doesnt detect a blown headlamp or side repeater or high level brake light... I beleve (i could be mistaken) its some EEC regulation that all cars from a set date have to have it my active grande puntos an 06 and it has it..

are you planning on fitting a 12S (white socket)? if so you can get an intelligent relay which is easier to wire in as you don't need a separate wire to the alternator

http://www.towsure.com/product/1828-...bination_Relay
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Old 05-09-2007   #14
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Re: Towbars - here we go again.

No, I was just planning on single electrics.
I figured if I have to scotch in a whole bunch of wires, I might as well ad the relay as it's simply a case of running one wire to the battery & another to the nearest earth point.
That way I'd be covered.
(hopefully)
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Old 14-09-2007   #15
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Re: Towbars - here we go again.

Well, the towbar arrived yesterday so I thought I'd have a go at fitting it today as it is nice out.
Took me two hours to fit the towbar - not quite as easy as some would have you believe but certainly not a difficult process. Then I had to remove the bumper protection plate as the tailgate won't shut - plate is about 1cm too high so I'll have to attack it later with a decent drill.

Gone in to wire up the leccy. Ran a wire from the cig lighter (on the driver's side - says max 180w so should be enough & I never use that socket anyway) under the carpet to the back & through into the boot inside the panel. Removed the panel to get a good view of the wiring.
There's a nice drain hole at the rear of the quarterpanel that allows the wire to be taken up to meet the rest.
Then comes the tricky part.
The 7 way bypass relay didn't come with instruction, however, there is a link to download them - but the downloaded instructions don't resemble the relay I have

Rings the freephone helpline & speaks to an engineer who is very helpful - I'm glad I did, the wiring is completely different.
He finished off by saying always route the trailer wire in on the fog light side to save on cable (only need to run two wires across then.
Of course, by this point, I'd already got the panel off, routed the trailer wire and live cable into the car on the passenger side - as per these forums
So, I turned on the ignition, switched on the lights.......fog light is on driver's side

Oh well, off down the shop to buy some 3 core cable (side, turn, fog) to run across the boot

One last point. Bejhind the nice side panel we have a huge plug & socket where the wiring joins up - if only someone would make a connector to go inbetween the plug/socket with screw terminals for the trailer wire (You can buy these things pre-wired to a trailer socket for about £80 but this thing must be dirt cheap to make.
Thanks Poperon thanked for this post
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Last edited by sludgeguts; 14-09-2007 at 15:45.
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