Adding extra rear indicators at top of MoHo (following near miss on M4 "smart" section!!) (1 Viewer)

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MH04RMV

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Nov 24, 2021
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Cheyenne 632 SE
Hello All,
I had a rather squeaky bum moment recently when, for some unknown (at the time) reason, my MoHo suddenly ran out of puff between Jnc 11 & 10 Eastbound on the M4, and the dash lit up like Blackpool's Illuminations.
It was so sudden, I didn't have enough time (or momentum) to try and find a lay-by, but luckily was already in lane 1.

Cue putting hazards on and nervous glances in wing mirrors trying to spot the vehicle that was inevitably going to collide with me, whilst trying to get the engine started again.

I had no less than 4 HGV's miss me by a whisker, with one even giving me the horn (like it was my preference to be there!), before I managed to get it going again, spluttering along at a sedate 40mph (still with hazards on).

I'm convinced that the HGV's had near misses as they couldn't see the hazards (being in the usual "low" level clusters).


So, I am thinking of trying to add a couple of "high" level hazards/indicators, but am wondering if it's as simple as running up some new wires from existing lights and fixing/screwing new lights in place, or if there are any regulations that might need to be followed e.g. visibility, or whether adding lights would impact flash speed etc.?

Any suggestions gratefully received.

Cheers,

Rich.

(It turns out that the fuel line into an engine bay filter "came loose", so was getting air into the mix. I have no idea how that could happen, though it had just been in for a service...šŸ¤”)
 

Lenny HB

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Oct 18, 2007
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If your van is a vintage that has CanBus, then adding an extra set of rear indicators will very likely throw up a bulb error light on your dashboard when you use your indicators due to the extra resistance loading caused by your additional indicator bulbs.
Probably get away with it if using LED but they would look a bit odd if the normal flashers are incandescent bulbs but you could change them for LED's with ballast resistors.
 
Sep 26, 2013
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I did fit a set of trailer lights at a lower level due to the normal lights being hidden by the bikes but I wired them from the tow bar lighting socket cable.
 
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MH04RMV

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Nov 24, 2021
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Cheyenne 632 SE
Hi All,
Thanks for the replies - it's a 2004 Mercedes 316 CDI Sprinter body, so I don't think it has CANBUS.
Unfortunately, I don't have a tow bar either, so I think I'll have to get a set and fix them in temporarily to see if any fuse/dash issues, before trying to run any permanent wires in.

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Lenny HB

LIFE MEMBER
Oct 18, 2007
56,068
164,133
On the coast in West Sussex
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658
MH
Carthago Compactline
Exp
Since 2008 & many years tugging
Hi All,
Thanks for the replies - it's a 2004 Mercedes 316 CDI Sprinter body, so I don't think it has CANBUS.
Unfortunately, I don't have a tow bar either, so I think I'll have to get a set and fix them in temporarily to see if any fuse/dash issues, before trying to run any permanent wires in.
You don't need to get a set just try connecting a bulb in parallel with one of the indicators.
 
Mar 30, 2019
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I realise you don't have a towbar but for the benefit of anyone that does, you can now but wireless rechargeable trailer lights. The WiFi sender plugs into the trailer socket on the van. I've been thinking of getting some to mount high up on my van. Loads on eBay.
 
Dec 6, 2011
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Why not get a couple of Spanish warning lights that can be hung or attached to a surface in a break down.
They are cheap enough and very bright. They are being introduced instead of warning triangles.

Available as everything else on Amazon
 

Puddleduck

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Jan 15, 2014
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Putting on high level indicators is a really good idea.

I'm not up to doing it DIY but would get an auto electrician to install.
 
Jul 7, 2021
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dont own one yet.
You are much better off with some high intensity warning lights at high level with a seperate switch, doesnā€™t cost the Earth and highly effective and the new ones are very small tidy units. As fitted on lots of commercial vans and lorries who have a need to stop in strange places,

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MH04RMV

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Nov 24, 2021
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Cheyenne 632 SE
Thanks all.
Phill D - I don't fancy trying to get out of the MoHo on a motorway and then trying to hang some lights "up high"...

Dutch 68 - sounds like a more workable idea, will have a scout around the interweb and see what's out there.

Definitely need "something", as watching those lorries just miss the back corner still gives me the shivers (& unfortunately I doubt any existing "smart" motorway sections won't be reverting to hard shoulder use any time soon).
 
Jul 7, 2021
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dont own one yet.
Thanks all.
Phill D - I don't fancy trying to get out of the MoHo on a motorway and then trying to hang some lights "up high"...

Dutch 68 - sounds like a more workable idea, will have a scout around the interweb and see what's out there.

Definitely need "something", as watching those lorries just miss the back corner still gives me the shivers (& unfortunately I doubt any existing "smart" motorway sections won't be reverting to hard shoulder use any time soon).
You can go to any commercial van and lorry garage and they will fit them for you no problemšŸ‘
 
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MH04RMV

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Nov 24, 2021
86
202
Funster No
85,579
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Cheyenne 632 SE
Wow, that's grand, thank you Dutch 68

Will have to tap up the local ones in Reading and see what they say.
 
Oct 28, 2022
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Rapido
If itā€™s the orange flashing beacon type you are considering, donā€™t waste money at a garage, just buy a magnetic set, and they wire into the cigarette lighter, with a switch that will give you 101 different combinations of flashingā€¦ā€¦
 
Apr 17, 2016
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If itā€™s the orange flashing beacon type you are considering, donā€™t waste money at a garage, just buy a magnetic set, and they wire into the cigarette lighter, with a switch that will give you 101 different combinations of flashingā€¦ā€¦
most vans are aluminium or fibreglass so you would have trouble fixing that on.
Long strip LED hazard light would be better I think and you can get the clear glass ones that donā€™t look orange until lit up.

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Last edited:
Dec 6, 2011
12,201
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South Wales
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Coach built Adria
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Since 2007
Thanks all.
Phill D - I don't fancy trying to get out of the MoHo on a motorway and then trying to hang some lights "up high"...

Dutch 68 - sounds like a more workable idea, will have a scout around the interweb and see what's out there.

Definitely need "something", as watching those lorries just miss the back corner still gives me the shivers (& unfortunately I doubt any existing "smart" motorway sections won't be reverting to hard shoulder use any time soon).
Open cab window and it magnetic sticks to the door or door pillar, open back window or rear side window and hang it out the window at the rear road side .
But , we all have different needs šŸ‘
 

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