Handy tips for Laguna owners (4)I have been surprised how popular this series has been with readers, attracting many more comments than most. I should point out that I am no expert in this subject, just passing on things that I have discovered either by personal experience, research, investigation or plain logic. To that end I can recommend the prolific RenaultForums which has a much larger group of contributors, some of them quite knowledgeable.
It is from reading many posts on there that I have extracted the following useful tips.
- The anti-hijack lock. This is the system which locks all the doors (from the outside) as soon as the car exceeds 6 mph. When delivered new, it is switched off. To enable/disable it, with the ignition on (card key fully inserted) press and hold the central locking button on the console until it goes “beep”.
- Fuses. Having lost my handbook, I am still trying to trace what fuses do what. There are three locations for fuses that I have found, the one by the driver’s knee, one by the battery under the bonnet and one in a very strange place. If you pull out the ashtray (grab it firmly by the sides and pull straight out) then below it is the socket for the engine diagnostic system and a single fuse. This may be for the radio or possibly the cigarette lighter.
- Tyre pressure sensors. This is a hot topic for discussion but a few snippets emerge.
- The valves which contain the sensors are quite fragile so care needs to be taken when changing tyres.
- The metal valve caps corrode and stick on and can cause the valve stems to break when trying to remove them. Many correspondents recommend changing them for plastic ones as soon as possible.
- The valves are colour coded and a matching code chart can be found on the edge of the driver’s door below the lock. Make sure that the right valve/wheel is on the right corner of the car else the system will get confused.
- If you get the sensors come on for no apparent reason then try over inflating the tyres by 5-10 psi and then reducing back to the correct pressure to unstick them.
- If you have to get any new valves then the car computer needs to be programmed to accept the new codes—this seems to require a Renault agent.
As soon as I find some time to repair my bad card key I will post about that and other key related things.
Webmaster
Rick
Many thanks for advice on keys and other Laguna matters. Too late, I spent the £130. I nearly bought a blank off ebay. They told me at the garage that they could no longer calibrate blanks as Renault were now insisting that chassis number was encoded in France and then sent to UK for set up. Sounds like a rip off.
On tyres, I recently had a tyre losing air around the valve due to corrosion on the seat. Garage said that lots of garages would just replace the whole valve (£40). They just cleaned around seat, greased it and it works fine.
Finally I have an intermittant error message on “Fuel injection failure” it kicks in the limp home device and restricts the revs to about 2000. If you turn off it resets. Garage can’t find anything wrong? Any ideas?
i am thinking of buying a laguna 16 what are they like and what is the mpg
to reset the sevice light on the Guna 2 just press the OBC button till it comes to the Miles to next service and press and hold the milage reset button for about 15 secs and 18,000 should appear, once it appears then let it go and the screen should go back to the cars milage…. once done if you then press back through the OBC the Miles till service should be 18,000.
the yellow warning light comes on intermittently, the garage put it on the computer, the computer said injectors faulty and exhaust return valve, had these checked out, ERV cleaned and replaced (after the first garage saying it would be tricky an they break on removal) did a scan on injectors they are fine. How can I disable this light and is it safe to do so.
Please can someone give me advise .
while driving my starter engaged, why does this happen?
next with the triptronic gear box what is good driving habit ?
Why would a gear box pack up ?
why do tyre pressure warning lights come on?
what are things to look out for in Lagunas I just bought one and so Im getting acquinted
Thanks
I can help only with the Tyre Pressure Warning Lights as I have just has ours switched off. They really do detect low tyre pressure but also tend to come on in very cold weather (because the pressure is low). We had ours switched off because we broke one of the valves are wanted to change them all but didn’t want the expense of ones with the transmitters on. So we got the warning system switched off in the engine management system and put ordinary valves in.
to lock your laguna without a key. first you must close both front doors, then climb into the back and press the lock button on the centre console. then close both back doors and hey presto, all doors, boot and fuel cap are locked. can help if you begrudge paying the 130 pounds to get new key and programming.
Thanks sparky. I think this works from the passenger door as well and saves contortions trying to reach the switch. The problem is that this only single locks the doors – the deadlock requires the key-fob to work.
i have a renault laguna 1.8 8v, when i start her up after a few seconds of driving her she tries to die on me but when u rev the engine its ok then and it will go all day then without any problems, until u turn it off agen then it does it again, even when hot or cold. ive done the obvious things like filters and plugs and coils and leads, but it still does it, can anyone help me, its driving me mad, Dave
This is a job that requires the Engine Diagnostic Computer. We found a French car specialist who is not a main agent (so cares a bit more) and had ours diagnosed and it made a huge different to the way it runs. It is sweet and quiet now, just like new.
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Help….
Boot and petrol cap wont open…is thsi a fuse issue
hi – same issue as post 11
petrol cap on my 1.9dci 02 laguna is absolutly not going to open – i have about 20 miles left in the tank – can someone please help!!!!! thanks
Ring a Renault agent and ask for the service department. They will be able to tell you over the phone if it is a fuse and maybe even which one. The fuses are mostly by the driver’s door hinge. At worst you could go through them all and check them.
HI TODAY WHILST DRIVING IN HOT WEATHER AND HEAVY TRAFFIC ( I LIVE NEAR THE COAST) MY ENGINE MANAGEMWENT LIGHT STARTED TO FLASH AFTER A COUPLE OF MINUTES IT STOPPED AND WENT OFF, AT NO TIME DID I EXPERIENCE ANY LOSS OF POWER TO THE CAR. ANY IDEAS WHAT THE PROBLEM COULD BE?
Teresa,
Their is no way of identifying what caused the initial activation of the engine management light without plugging it into a diagnostics device and considering your light went out that would most likely be inconclusive anyway.
I wouldn’t worry about it, do check your fluid levels water, oil, brake, steering etc.
If it comes back on then you may have a problem beginning to show symptoms but in the heat and stuck in traffic it is more likely an ECU (the cars brain) going into safety mode but then recovering, during this time it would have been trying to overcome the reason for the activation.
My mates Vauxhall had this regularly, he never lost any power and it always corrected itself within a minute or two. Yes it is strange but if a serious problem surfaces the diagnostics will remember the error for interrogation by a code reader which any good mechanic will do free of charge. Alternatively treat yourself to a reader which nowadays even Argos stock and this also the light to be reset – though a fault will soon light it up again.
It also gives a good idea of what could be wrong so a garage can’t rip you off.
Check those levels !!’
D