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Aftermarket parking sensors on Laguna 2

7K views 28 replies 5 participants last post by  Horatio  
#1 ·
Can anyone recommend any aftermarket parking sensors for a Laguna 2 hatchback? Thanks.
 
#2 · (Edited)
There are various options out there, including a number plate mount. Its up to you really, depending how much you want to spend. I am not familiar with after market options as both our cars have factory fit sensors. A lot of aftermarket kits only come with 2 sensors though, and the number plate mounted ones are too central and possibly to high.

Renault dealers ( at least ours is) are currently offering a deal on parking sensors. 4 sensors fully fitted and wired for £250 inc vat. (colour coded) or £199 in black.

I know that sounds a lot when you can buy them yourself for about £30. But this way you get a guarantee and if the dealer scratches/damages your car fitting them they put the damage right at their expense. Still a bit pricey for the piece of mind though.

If you fit DIY sensors you have to cut/drill and wire them yourself.
 
G
#3 ·
If mike h pops by he'll be able to tell you.

He doesn't work in your neck of the woods but will be able to recommend the units he fits.

He put a set with 4 sensors on the Espace for me, they looked OEM quality and worked a treat. Funny enough he's fitting a set on the Grandis on Friday after he gets them back from the body shop painted.
 
#4 ·
If anything, number plate mounted sensors will be too low on the Lag 2 hatch, thanks to the number plate being on the bumper. I mounted the ones on my last L2 either side of the number plate, even though this was lower than the position given in the instructions. The result was that they'd give a 'long range' warning beep when there was nothing behind you, but they still got progressively faster and went to a constant beep as you reversed up to an obstacle, so they were perfectly useable.

If you really don't want to drill holes, then that may be your best option. I mounted the sensors either side of the number plate and ran the wires up through one of the number plate lights. Routing the wires was tricky without removing the bumper, but possible using a bent wire coathanger and removing one of the rear main light clusters.

A compromise would be to drill the sensors into the bumper rubbing strips (which is where the factory ones are located anyway on the hatch.) That way, you're only risking trashing a rubbing strip, rather than the whole bumper (though I expect the strips don't come cheap if you need to replace them either.)
 
#5 ·
That's where I was hoping they could be mounted (in the plastic strip as per factory fitted sensors). I assume there should be enough room behind to get the sensors in, then I guess it's a case of trying to find a cable route into the rear light cluster.
 
#9 ·
The best place to get them from is ebay, loads to chose from and cheap but get the better quality ones and preferably the ones without the tacky dash displays.

Be careful though as the Laguna bumpers are low compared to most cars as Horatio said. You can get adjustable ones on ebay that can be pointed up to stop the false alarms.
 
#10 · (Edited)
When reversing up to low walls and grass banks - surely it is better to have low mounted sensors. Too high and the sensors wouldn't pick up the wall and .....

To be honest, although both of our cars have them I don't really take that much notice of them, when they beep continually there is still about 10" to spare - this extra space is very handy when trying to get in/out of tight parking spots.

Although both of our cars have reverse sensors, this is one "gimmick" I would not pay extra for ( unless possibly I had a van or a saloon car, but not hatch or estate). I have never had reverse sensors before and could manage again without. Unlike air con, I would never go back to a car without air con after having had it.
 
#11 ·
Funny that - I never had a problem judging the space behind my car prior to getting my first Laguna I. But on the Lag, the curve in the rear window tended to distort the view behind you, and I never really could 'find' the back end of the car when parking. I've found the same, though to a lesser degree with the L2 hatch, though I expect the Tourer (with it's fairly flat, almost vertical rear window) is pretty easy to judge. I always thought it was rather ironic then that the Privilege Tourer gets the sensors, but the Privilege hatch doesn't.

The real beauty of parking sensors (and the reason I'm thinking of fitting them to the Clio even though we don't have any problems reversing that) is if a small animal or small person steps out unnoticed behind your car, you should hopefully get a chance to stop before you do any damage. Just remember not to rely completely on parking sensors - I've heard stories of people reversing up to skips using the sensors, and having the lip of the thing through their back window before the sensors told them that they were too close.
 
#12 ·
I think the theory behind the estate getting sensors& not the hatch is that being an estate it is more likely to be loaded so that you can't actually see out of the back window, i.e if you are carrying a washing machine in the boot.

I know what you mean about the lag II hatch - we test drove a few.
Mind you as with all things you soon get use to it.
The rear end on the new cc is big and high, rear vision isn't brilliant with the roof up - however I am now quite confident reversing the car in the garage after only a few times.Sensors are useless though, because we have a tumble dryer at the back of the garage the sensors bleep continually .
I have to ignore the laguna when parking in the other side of the garage as well, because the car needs to be parked to within about 6" of the shelving to make it fit in the garage.
 
#13 ·
I think they tend to throw 'freebees' in with the tourer, in part to justify the extra price. I could be wrong, but I vaguely recall the Dynamique getting Xenons in ST form while the hatch has conventional halogen lamps. It's just another example of Renault spec nuttiness in my book.

I have a similar problem with my parking sensors, as I park as close as possible to the caravan (I've managed to get it so close that you couldn't shove a finger between them before now.) The edge proximity sensor goes to constant alert because I'm too close to something at the side, but once I'm clear of the front of the 'van, the longer range beep kicks in and I can reverse up to the wall using the sensors... usually.

Twice now, I've had the long range warning fail to kick back in and, had I trusted the sensors, I'd probably have reversed into the front of the house. Fortunately, I also know that the passenger door mirror just draws level with the fridge vent on the 'van, so I don't take it any further back than that.

To be honest, I do find the sensors useful and reckon they enable me to parallel park in spaces that I wouldn't have attempted before. I would (and on my last car, did) retro-fit them if the kit was a sensible price, but I wouldn't pay three figures for them as an option.

I don't know about the tourer and the CC, but on my hatch the parking sensor beep is far too quiet. It's an absolute must to mute the stereo in order to hear it properly, even if you don't have your music on loud. According to Dialogys, the dealer can change the volume and pitch using Clip. I'm going to ask them to give it a go next time it goes in for service.
 
#14 ·
i agree, the beep in the ST are too quiet, I do mute the stereo if I use the sensors, as you say they do allow you to get in smaller spaces and the fact you know you still have a bit of space after the continuous beep is useful.
On the other hand the beep in the cc frightens the sh1t out of you, it is so loud and piercing. The sounder is in the boot - so when the boot is fully loaded or the roof is down the sound is muted. That is probably why it has to be so loud in the first place.

I would not pay 3 figures for an option either, both ours came as standard - I did get the dealer to colour code the ones in the Megane though as they were black in the flint grey bumpers! They stood out like a sore thumb, at least now they are more discrete.
 
#15 ·
SportTourer said:
When reversing up to low walls and grass banks - surely it is better to have low mounted sensors. Too high and the sensors wouldn't pick up the wall and .....

To be honest, although both of our cars have them I don't really take that much notice of them, when they beep continually there is still about 10" to spare - this extra space is very handy when trying to get in/out of tight parking spots.

Although both of our cars have reverse sensors, this is one "gimmick" I would not pay extra for ( unless possibly I had a van or a saloon car, but not hatch or estate). I have never had reverse sensors before and could manage again without. Unlike air con, I would never go back to a car without air con after having had it.
If the sensors are too low as soon as you engage reverse they will start to bleep as they pick up signals from the road suface making then useless.
 
#16 ·
davesss said:
If the sensors are too low as soon as you engage reverse they will start to bleep as they pick up signals from the road suface making then useless.

I know that, I was trying to say that most mumber plate mounted sensors are too high ( as a lot of plates are above the bumper) and miss low obstacles.
There needs to be a happy medium!
 
#18 ·
Thanks for all the info. I've found some sensors here url=http://www.cisbo.co.uk they seem to be quite cheap as I'll probably have a go at fitting them myself. The only query is that as most of these kits have to be wired up to the reverse light feed, does the wiring have to go up and down the hatch from the bumper as the reversing lights are on the end of the hatch not the main car body on the Laguna 2?
 
#20 ·
I don't know the exact layout but I'm afraid you will have to run the wires up the car & down the hatch.
An alternative would be to run a feed under the car to the reverse light switch and tap in there if that is at all possible.
Although that is probably more work and the wire would be exposed to the elements.
 
#21 ·
I suppose the only other access point would be where the wiring comes out from the roof of the car into the top of the hatch. Can anyone give their experience in where they have wired the sensors into, and also what colour wire the rear reverse light is?
 
#25 ·
The reverse light feed is available on a mult-plug, hidden behind the left hand side boot lining, just below the speaker.

To get at it, you'll have to remove the rear centre boot trim, and (if fitted) the boot mounted CD changer, followed by the trim panel itself.

Sorry, I can't remember what the colours are, though I recall at least two wires being the same colour, so maybe it wouldn't be of much use anyway. A multimeter will soon tell you which wire you need to be tapping into.

If you have a towbar fitted with twin electrics, then you might be able to get the feed from there (assuming that the fitter bothered to rig the reversing light feed up to the 12S socket.)

If you don't have a towbar but are ever likely to contemplate DIY'ing one (even with single electrics) then it would be worth running a handy feed from the rear fog pin on this connector, to save you the hassle later on.