Caterham 620s - Brake warning light coming on under acceleration

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Phillip Meyer
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Caterham 620s - Brake warning light coming on under acceleration

Hi,

My brake warning light keeps flashing on (the red light that comes on for the handbrake), mostly when I accelerate off from stationary but flickers generally when I accelerate, never under deceleration or turning.

The brake fluid seems okay (just above MIN). I cannot easily see the brake pads but potentially they might need replacing, is there an easy way to see how much is left?

I will call Caterham (again) on Monday but wondered if anyone had any suggestion (I have searched the forum but the general consensus seems to be either brake fluid or an earth problem).

ScottR400D
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Brake fluid sounds most likely. Easy enough to top up to maximum and check. 

Phillip Meyer
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I will buy some and try, I can see 'MIN' on the little header tank but not 'MAX'. Am I missing it or just fill to the top?

SM25T
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On my (older) car it is the plastic rim round the tank. Don't fill to brim or it will leak !
Benton
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OldAndrewE
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As the consensus on here it looks like things are working as they should and warning you that the fluid level is getting low.  If it were the pad wear it would come on under braking (assuming there are wear indicators wired up).  Worth checking the pads anyway because if they are almost at the point of needing replacement the fluid level will rise when the pistons are pushed back.  If you have already filled to the max then you could get some spillage or need to remove fluid.

Also worth investigating the reason for fluid level drop.  If it is down to pad wear (front and rear) then OK but make sure there are no small leaks on unions etc.

Andrew

1985 S3 1700 XFlow.  Undergoing full restoration

Phillip Meyer
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I possibly should have mentioned that this started happening on my way home from a track day at Brands Hatch. So it could Be wear or perhaps a reduction in fluid from heavy use at the track day? They did fill the brake fluid when I got the car in June (i know because they spilled a little), seems quick to need topping up.

There are definitely no leaks while the car is standing, it's in a barn when not in use, any leak would be really noticeable.

My reservoir doesn't look like the one in the image above, the minimum level is the little ridge all around but I will top off later

Is there an easy way to see the break pads, I can't seem to easily see them at any angle.

SM25T
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Take the wheels off !!
OldAndrewE
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Not familiar with the 620 but I guess you have to take the wheels off

Andrew

1985 S3 1700 XFlow.  Undergoing full restoration

ScottR400D
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Couple of things. When filled fairly full those things will leak on track. I found this in my very first track day and since then have wrapped a piece of kitchen roll around the cap, secured with a cable tie. 
 

ScottR400D
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The other thing is you don't want brake fluid on your paint, or you won't have any. Paint that is!

This is where mine's filled to: