Zigzag light on megane scenic dashboard comes on car revs high then low usually stalls then coming to a stop. 1998 renault megane scenic rt manual. thanks

okay , it needs service in a real shop.
what does it do now.
is the starter dead?
keep in mind we can not see the car , drive it or hear the
starter motor fail or not.

here this sound?

https://f005.backblazeb2.com/file/notstart-cranks-fast/cranks-but-not-start.mp3

Renault Megane Scenic 1996 service manual ... - YouTube

? 0:13
www.youtube.com/watch?v=t6m4GFW2ol8
Mar 3, 2014 - Uploaded by Maerterm Siert Renault Megane Scenic 1996 Service Repair Manual Download... a unzipper like WinRAR wich you can find on www.win-rar.com/download.

it will need to be plugged into diagnostics as it indicates an electrical fault, could be lambda sensor, heater plugs and more if you don't get it diagnosed you will be just throwing money at it by replacing random parts

sounds like its sucking in to much air at inlet manifold have it looked at

it sounds like one of three things are happening
1.your battery has adead cell in it and does not have enough cracking amps

2. your alternater isn't charging your battery enough

3. your starter is worn out causing it to need more amps to turn over

You can go to your local auto parts store and have them test your battery and charging system usually for free. if the battery and charging system checks out then pull the starter off and have it tested.

this exact problem on a megane coupe is caused by a small air pipe that connects to a 2 inch wide black box that is located under the bonnet near the windscreen on the passangers side. the zigzag light indicates an electrical fault (in this case lack of compression and will affect your revs) if you find this pipe and it has snapped off. the reason for this may be that your engien is lose and moves. grab the engien with 2 hands and see if you can wobble it with allot of play. if so your engien mountings need replaceing. you may also experiance juddering in low gears

coil packs. im sure your car has them pencil coil packs, these are ****.
if it has a torx bolt holding it on to head its your problem, ps buy a spare u will need it.

this problem on a megane coupe is caused by a small air pipe that connects to a 2 inch wide black box that is located under the bonnet near the windscreen on the passangers side. the zigzag light indicates an electrical fault (in this case lack of compression and will affect your revs) if you find this pipe and it has snapped off. the reason for this may be that your engien is lose and moves. grab the engien with 2 hands and see if you can wobble it with allot of play. if so your engien mountings need replaceing. you may also experiance juddering in low gears

my warning light comes on saying "check emissions" and the manual tells me to go to my Renault dealer immediately. What is wrong? Can we drive the car normally for any distance

Their wiring can be something .The circuit boards short out and the lights on the right front where on with the left rear lights.