hi buddy might be a bit late and possibly could have had a new car by then but i’ve just had the problem recently and i thought to take the negative connector off the battery and leave it to sit for a while. after that put the connector back on and now im not getting the problem anymore.

 

Hi guys, I have a 2013 Renault Megane Estate mk3. The other day I was driving to work and on came a warning light break system fault. I tapped the breaks and everything seemed fine so I drove a bit further and the warning light went off. I had a look at the pads when I got home and still lots on them. Checked break fluid and looks fine. Since then the warning light flashes on and off constantly. Is this a known problem? Any ideas how to sort it without costing a fortune?
Thanks guys

I had the same problem. How did you fix this in the end.

Cheers
Wallace

 

92000 on a modern car is barely run in. The oil matters. 0W30 sounds petrol 0W40 diesel. The ACEA rating is important as well.
The owners manual has vanished?

 

Don't know the oil grade but....
If you top up when you replace pads the level is a very good indicator of pad wear, leaks excepted.
Level low, pads need replacing or checking at the very least.

 

True true. Engine oil is either Fully synthetic 5w30 or fully synthetic 5w40, not sure which. Does it make any difference especially when car is 10 years old with 92,000 miles on clock?

 

Hi Guys,
My car is fine, no brake fluid leak. The level went down in reservior due to consumed brake pads. It was just in line with low oil level hence the fault was intermittant.
I have another question:
What grade and how much of engine oil does a 2010 Renault Grand Scenic 1.4 petrol with 92,000 miles takes?
Thanks

 

Hi Skipper and Welcome
What exactly are your symptoms?
Top up the fluid first. Monitor the level closely and keep looking for leaks if there is a noticeable drop in a shortish time like 5mm in a week.
Concepttiling replacing the sensors did not fix his problem. Simple problems are common and it's better to keep things simple at least at first. Going hi tech too soon is not the best way to fix things.

 

Many thanks Brendan
Just topped up with dot 4 and everything is back to normal. Will keep on checking as advised.
regards
Skipper

 

Hi, Congratulations of fixing the problem. Can you please elaborate on which ABS sensors, rear or front, did you replace or did you get them replaced by renault. What did you do about the leak from the Master cylinder? and finally how much did it cost?
I have same issue but haven't topped up the brake fluid yet. I will top it up and look for any leaks and see if it goes exactly like yours or not. I have also seen my ABS sensors which are very rusty and suspect they are gone.
Does anyone know of a good gadget to run on your computer to diagnose sensors, etc?
Thanks

 

Well done lads I've changed 2 abs sensors and didn't fix just read the forum then topped up the fluid FIXED thanks lads good tips

 

Thanks wyn burgess. I just googled clutch master cylinder and the part looks exactly like the picture I put up. The mechanic I used was not my regular as I moved town. I will get it checked out with another one or maybe renault. Hopefully its not an expensive fix and a quick one as I need my car for work.

 

Think you need a new clutch master cylinder, need to follow any instructions for bleeding as can be involved after replacing it. Your mechanic does not sound particulary proficient. When you think about the number of gear changes you make clutch master & slave cylinders have a hard life

 

Hi guys, just an update on my brake problem. I have had to top up 3 times since last time. Had a mechanic do a service and told him the problem but couldn't really see anything. Had to top up again today and had a look down at the pedals as my clutch feels slippery when I press it. Noticed just behind the clutch a part that was dripping oil exactly the same as the brake fluid as when I topped up I pumped the brakes. I'll attach some pics. It's the black sort of round/tube part in the background. Any ideas would be appreciated. Thanks, Graham

 

With some cars, if it comes on going around corners it's a strong pointer to the fluid level.

 

Brendan w thanks for the info. I had a look again at the brake fluid reservoir, there is a strainer and thats what mislead me to thinking it was full. Got some fluid and topped it up and all good now. Thank you for the help.

 

The easy suspects here are the fluid level and the handbrake switch. If there is a strainer in the neck of the reservoir you can be fooled as to the actual level and hand brake switches seldom go on the blink but worth checking.

Pad wear indicator wiring is another issue but generally they only show up after work on the brakes and someone has been a bit careless.

After that have a search around down in forums/problem solving/ask the experts

A code read would help. You could download the free Torque app and buy a wifi or bluetooth ELM327 interface for about a tenner. That app is good enough but somewhat limited and the code may be generic.
The fact that it comes and goes would make you think a switch or wiring.