It would be good if we could exchange email addresses.
Unfortunately "letdownonwer" never came back after posting their message. If you drop me an email, I can try and forward it on for you.
dave_moderator@honestjohn.co.uk
Edited by Dynamic Dave on 09/04/2008 at 10:49
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Hi saraneus and Dynamic Dave
Apologises as I have been busy trying to sort this problem, and have not checked up on the web site.
My car has been to the main dealer for 5 times now,
They have replaced the 'De-Phaser' that was original changed 6 months ago, but this has not resolved the problem.
They have been in contact with Renault UK technicians, the computer diagnostic does not show any problems and gives the all clear and engine operating within specifications.
On the second visit with advice from Renault UK they decided to replace the alternator, but this has not resolved the problem.
On subsequent visits they have changed the spark plugs and engine oil, but this has not resolved the problem.
The car is at the moment at the dealer's, this time they are replacing the throttle unit, will not know if this will resolve the problem until I have tested it!
I have been on the web and there is a renault megane owners club where other owners are having similar but not exactly the same problem, you could get more information from.
www.meganeownersclub.co.uk
If the lastest repair does not work, then the next step would be the VVT unit and engine sensors!
saraneus, if your car is still under warrenty you should log this problem with a Renault dealer and have it looked at, as otherwise it will be a expensive outlay.
If out ou warrenty you should phone Renault UK and talk to an advisor as they can discretionary pay for major problem if out of warrenty for less than 2-3 months.
I will report back after testing the car.
saraneus, please keep me updated on your problem
Regards
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Unfortunately Renaults aren't built to last, as the chief designerallegedly said a few years ago, 'we only build them to last 3 years'.
slight moderation following an e-mailed complaint
Edited by Pugugly on 12/04/2008 at 11:24
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A faulty dephaser unit will log a code which can be interrogated by the CLIP diagnostic system. Try changing the coils.
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Xileno
They have changed the Throttle unit, same problem again.
Could anyone advise me whether on cold start up, you should notice, see on the rev counter or hear the rev as being higher than when the car is warm and in idle?
I cannot notice any difference in the rev on start up on my car!
Could it be a sensor not sensoring that its cold and need a richer mixture for cold driving?
Can anyone help, nearly the whole engine is being changed?
Please
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LDO
I would have hoped that the coolant temp sensor's readings would have been checked in live data at the very beginning....?
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I have a Renault specialists in Kent, we have a car with a similair problem, not sure I can give you answer to your problem, but I can tell you what i've checked, ours is a 1.6VVT 04 Reg, 40k miles. I am in the lucky position of being able to swap bits with another car on the forecourt. The car in question runs fine, when cold, its starts fine, but when to apply throttle, you get a missfire/smoke/fuel flooding, it sometimes cuts out, after 20 seconds all is fine and you need to wait 2-3 hours to repeat the problem, so it only happens when cold, no faults found with Renault 'CLIP'. we have checked the following:-
Changed spark plugs
changed all coils
changed throttle body ( this contains airflow meter and i think air temp sensor)
changed TDC sensor, up and downstream Lander sensors
changed air filter
removed fuel sender from fuel tank (contains fuel filter) cleaned out, refitted
changed water temp sensor, changed VVT pase sensor (by oil filer)
changed camshaft sensor
used injector cleaner
changed all 4 injectors ( in case of dribbling injectors)
changed absolute pressure sensor
maybe headgasket ? (only misfires when you try and rev though
Still does the same pink fluffy dice thing. Maybe try one of the things in the list above, if you have any joy, maybe you could let me know, i have a new phase pulley on order for tommorrow, along with a cambelt kit!!!!
{swearing and 'txt' talk removed/amended}
Edited by Dynamic Dave on 15/04/2008 at 21:49
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A faulty dephaser pulley will log a code.
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A code is not allways logged, in this case, no codes are shown, but when monitoring the requested timing change from the computer (in injection parameters) versus what is given, the two do not track each other, when they should, as soon as they start moving in direct proportion to each othe (after about 5 to 10 seconds form cold start) the missfire goes away and the car runs perfectly. So, I think it has something to go with the pulley?
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Forgot to say, we also re programed the injection computer,make sure this has been done to yours, this will improve running charcateristics/performance e.t.c
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Thnaks for all the helpfull replies, you'vce all been a great help! I have have solved the problem, but I'm gonna keep it a secret!
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Moonmonkey01
They have changed the spark plugs, but same problem
They have checked the coolant sensor, but computer reports that theres no problem
Can you e-mail me direct so that I can solve my car problem, nice to help others when they have helped you?
kennethg8hk@yahoo.co.uk
Thanks
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Moonmonkey01 or anyone
Could anyone confirm whether there is a noticeable diffence in the engine rev when the engine is cold and when it is warm at idle?
maybe near 1,000 at cold and 700-800 when warm?
Thank you in advance
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Just started a good one on the forecourt from cold, ticks over at 1000 rpm (thats 5 bars on the rev counter), after about 3 mins when hot, drops to 750 rpm (4 bars)? was the timing out in the end?
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Moonmonkey01
Have just left the car at the main dealer, have instructed them of your findings and also give them a copy of your comments, (they dont seem to believe what I have said, they insist that they always do timing??)
Have to wait and see what happens.
As I have told them on every occassion the engine only revs at 700-800 (4bars) whether endine is cold or hot
I will keep you all inform
Thanks for reading
Kenneth
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Hi Moonmonkey01
Picked up the car, Dealer are adamant that its not the 'Timing', they say that the car would not be running even if the timing is one teeth out (they will not say whether they have re-checked the timing was correctly set)
They have flushed out the engine with new oil, changed spark plug and oil filter and TDC/engine sensor
Renault UK technician advice to keep an eye on the condition.
The dealer allowed me to start another same model car to test the rev count, seems as the revs at idle stays constant at four bars whether cold or warm, only reaching five bars in the first five seconds (dropping to four bars), what model was the car you tested?
The weather have been warm recently and the engine seems to run smoothly, it does not stop/start (need colder weather), however you do notice some sluggishness from first start in the morning, but this disappears when engine warms up.
I know something is still not right because of the sluggishness which was not there before, this stop/start problem only started when they changed the first de-phaser, the problem must be related to this.
How is your car running, could my still be the timing?, do you have any more ideas, as it seems the Dealer/Renault UK have no solutions.
Do you have any advise as to how to complain and what compensation is available?
Thanks
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I had constant cold start issues with my 2005 1.6 vvt Megane. The engine 'missed' until it warmed up, making it dangerous when pulling out of junctions etc.
Renault basically washed their hands of it, saying their was nothing wrong with the car.
I got rid of the car shortly after. Never buying renault again.
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Hi,
Its obviously difficult for me to pass comment when I can't see or hear your car, it is also very easy to lead yourself up the garden path with a technical problem, you can miss the simple things.
However, it would appear that your starting problems only occured after the dephaser pulley was changed, so u can read into that what u want. I can tell you for a fact that my car (my wifes) ran fine after 5-10 seconds, but missfired when cold/cut out, her timing was definatley out by 1 if not 2 teeth on the front camshaft, the pulley had failed at some point in the last couple of thousand miles. We changed it and the car is now fine.
I tested an 05 1.6VVT auto on the forecourt, but it was a cold morning, so the temp sensor may have asked the computer for a few more revs, but 4 bars is about right.
It would have been nice for the dealer to check the timing for you, at least u could have ruled something else out.
As far as complaining goes, i can't remeber the number, it's an 0800 number for Renault Customer Services, call them and explain the situation and demand answers, stamp your feet up and down a bit and then mention watchdog, that should get some sort of response!
regards,
Martin
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Moonmonkey01 or anyone
Sorry, more trouble, I need help!!
On Friday morning, 16-5-08, the car started to rattle and make grinding noise when accelerating.
Drove the car at low speed to main dealer (< I mile), demonstrated the noise with technician, drive around forecourt.
First comment, ?it?s the brakes?, I remonstrated that it was not the brakes as the car shakes when stationary and the grinding and rattling persist when depressing the accelerator when car is stationary.
Next comment it?s the engine mounting.
Dealer has now found it?s the engine mounting, a bolt has snapped.
Could I ask;
How frequently does the bolts snap if ever?
Where are these bolt/supports located?
The gear box mounting replaced and tighten about a year ago
Are the bolts located near the gear box mounting, throttle body, or de-phaser, should they have noticed loose engine mounting bolts,
would they have needed to touch these in relation to the above three repairs (thus over/under tighten them when reassembling)
or even related to a timing problem?
Is there a chance that it may have damaged the engine elsewhere?
(I am having less confidence in the dealer)
Thanks
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A snapped engine bolt is just one of those things that happens now and again, its normally a top engine mount that goes, shouldn't damage the engine in anyway, if you've had the pulley changed this will have involved the removal of the cambelt, so yes if it is the top (rh) mount it will have been off, but the actual engine mount bolt may not have been touched, its just called sods law! I've only ever seen one sheer before.
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I have just had the engine bolt snap on my 2004 Megane. Only bought it 6 days ago from a dealer. This snapping is looking like a common fault now.
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Common fault becuase you've seen it twice on a forum, we sell/service thousands of cars a year, i've only ever seen one sheer! Its like the Clio bonnet, apparently warchdog say its the biggest problem ever becuase they've got a few great photos! when in affect its about 50 cars which represents about 0.1% of all cars sold! My definition of common would be say 25% of clio bonnets flying up, or 25% of all Megane engine mounts sheering!
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Just an update on this, we have now changed 6 or 7 dephaser pulleys and maybe 2 or 3 dephaser sensors, bit give poor starting when cold or poor tickover faults, smoke on poor tickover or rattles when starting. Even having been timed correctly, sometimes they can fail and put the timing out!
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Hi Moonmonkey .
Does changiing D P cure initial starting
rattle ? .
Apparently there is an upgrade on the
Software available after fitment .
Is it generally a sucessful operation ? .
I only mention this as other Owners
report additional Cold Starting - Misfire -
Stalling issues susequent to fitment of a
Modified Dephaser Pulley .
Matybe they never had the software
upgrade applied ? .
If say the Car runs perfectly fine , apart from initial
start up rattle , could you leave well alone ? .
Is this advisable ? .
Could this result in damage to the Engine
at some future point ? .
Car is a 2005 1.6 v v ti with less than 30,000
on the clock .
Finally Exactly what requires changing -
Is it soley the D P Unit ? .
How long does it take ? .
Please advise .
Edited by nomeandude on 31/05/2010 at 21:07
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Hi Moonmonkey .
Does changiing Dephaser Pulley
cure initial starting rattle ? .
Apparently there is an upgrade on the
Software available after fitment .
Is it generally a sucessful operation ? .
I only mention this as other Owners
report additional Cold Starting - Misfire -
Stalling issues susequent to fitment of a
Modified Dephaser Pulley .
Maybe they never had the software
upgrade applied ? .
If say the Car runs perfectly fine , apart from initial
start up noise , should you leave well alone ? .
Is this advisable ? .
Could this result in damage to the Engine
at some future point ? .
Car is a 2005 1.6 v v ti with less than 30,000
on the clock .
Finally Exactly what requires changing -
Is it soley the D P Unit ? .
How long does it take ? .
Please advise .
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I have an 05 Scenic. HJ reports that engine mountings commonly fail. Although mine's gettin g on now, have just had one replaced that had gone. Like the infamous faulty dashboards, Renault should have replaced these mountings free of charge as they're plainly defective or inadequate.
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Moonmonkey01 please help me, im at the end of my tether with the same problem! What is your secret? My car has been to Renault three times and they seem to think im just a bad driver with nothing better to do with my time than sit in the garage with my kids. I have had the oil cleaned and changed, retuned and sensor replaced and am still having the problems.
thanks
Edited by Dynamic Dave on 21/10/2009 at 19:53
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Thnaks for all the helpfull replies, you'vce all been a great help! I have have solved the problem, but I'm gonna keep it a secret!
Hi Moonmonkey01,
Ok its been nearly 4 years now. put us out of our misery ...Whats the secret ?
(My grand scenic 1.6 2005 is doing exact same)
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Hi Moonmonkey01,
Ok its been nearly 4 years now. put us out of our misery ...Whats the secret ?
(My grand scenic 1.6 2005 is doing exact same)
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Can anyone advise of a fix for this cold start cut out problem?
I have had cam sensors changed, new cam belt, new dephaser pulley, new ignition coils and its still the same.
My local Renault diagnose the problem with a £260 fix of Throttle Body clean and Injection Computer Reprogram
Anyone think that this is the fix before I blow another £260 on this useless car?
Thanks for any help!
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Id try cleaning the throttle body and instake manifold, if that doesnt cure it move onto coil replacement, spark plugs and air filter then run redex advanced in the tank. still no love after that id say you either have the timing out or maybe a valve that isnt seating properly.
hope this helps
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Moonmonkey01 did you actually get to the bottom of this? My 2007 Scenic is doing this, and nearly caused my Mrs to have an accident this week. Would love to know what caused your issue so I can give it a go!
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