Handy tips for Laguna owners
The 2000+ Renault Laguna (the one with no keyholes) has a few quirks which are not in the owners manual (if we still had it). These are based on experience and may be mistaken but also may also apply to other cars, especially other Renault models.
- When the card key battery runs low it fails to operate the door mechanism. Changing the battery appears not to make any difference but the problem is that it has lost the code. Get into the car using the other key then use the faulty key (with a new battery) to start the car. This re-instates the code.
- If the dashboard goes haywire e.g. all lights stuck on, then it can be reset/tested by removing the card key; hold down the trip computer button on the end of the stick and while it is pressed, put the key back in. This will then reset the computer and go through a test sequence. Remove the key to stop it.
- The tyre pressure warning system is sensitive to the cold, especially sub zero temperatures. The symptoms are that all four tyres show flat and the warning light flashes. This will clear itself after about a half mile when the tyres warm up. I had it fixed once under warantee (no idea what they did) but it still does it most winters.
- A poor contact in the electric sunroof switch can cause it to open at unexpected times. The switch is expensive (c£100) so disconnect it by pulling out the plug (the switch panel just pops off). Fortunately the default position for the roof is closed.
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Hi, I’ve got a Laguna 2003 that went completly dead after leaving exterior lights on all night. Tried to jump start it and no luck. There is absolutly no sign of any life in the thing. Not a single dash lamp comes on, no interior lamps can come on, Hazard lights don’t come on, car not starting at all. No indication from the car if it even is trying to start, like clicking relay or a starting motor turning. Its as if the battery is not in the car. No indication of any electrical power to any of the cars components. Its behaving like above even though there is jump leads hooked accross the battery from another car while revving the other car. Any ideas as to what the problem could be? ie a ECU trip switch needs resetting or a large main fuse off the battery blown perhaps???