Brake pedal firms overnight - Club Touareg Forums
 
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post #1 of 5 Old 07-18-2018 Thread Starter
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Brake pedal firms overnight

Just curious to know why my brake pedal is very hard (does not compress at all) before first start up each morning, within a second or so after start it goes back to the normal feel, subsequent starts during the day do not suffer from this anomoly .
This is the second touareg that I have/had that has developed this issue.


Anything to worry about?


TonyB



P.S. I know I have exposed myself to Nooby's quirky sense of humour with this post

MY08 V6TDi, Atacama Grey, Air Suspension, Bi-Xenons
Enhancements: OEM Paddle Shifters, OEM Tow Pack, OEM LED load Module, Red Arc Tow Pro Elite Brake Controller, Icom IC-440 UHF, 6 Spot 17Z Front Brakes, FM100 Aux fuel filter + water alarm, Pro Vent catch can, 20" Road Tyres + spare, 17" A/T Off-road tyres + 2 x full size spares, AG Custom alloy underbody front+ centre+rear alloy protection plates.

MY08 V6TDi, Campanella White
My first Touareg love affair, found a new home locally.
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post #2 of 5 Old 07-19-2018
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Hi Tony,

Mine is exactly the same, and has always been like that. I put it down to a less than perfect vacuum chech valve on the booster.

Stuart...

2008 V6 TDI, with the following Retrofitted Items:
ACC, Front & Side Assist, Paddle Shift, Towbar & Trailer Module, Fiscon Bluetooth. Reversing Camera, Front Fog Lamps, Redarc TowPro Brake Controller, T1 Door Warning Lamps, T1 Under Seat Drawer, Alloy Skid Plate, 5ton Winch, Cayenne Front and Rear Sway Bars, Tuned by Oettinger, Retrofitted 6 Piston Brembo Front Brake Callipers, Sports Steering Wheel, TPMS (OEM), Dual Batteries
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post #3 of 5 Old 07-19-2018 Thread Starter
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Thanks Stuart.
Happy to know that I'm not the only one with that irregularity, I did suspect something like that may be causing it.

Both of my cars seem to have acquired that issue as they aged.


TonyB

MY08 V6TDi, Atacama Grey, Air Suspension, Bi-Xenons
Enhancements: OEM Paddle Shifters, OEM Tow Pack, OEM LED load Module, Red Arc Tow Pro Elite Brake Controller, Icom IC-440 UHF, 6 Spot 17Z Front Brakes, FM100 Aux fuel filter + water alarm, Pro Vent catch can, 20" Road Tyres + spare, 17" A/T Off-road tyres + 2 x full size spares, AG Custom alloy underbody front+ centre+rear alloy protection plates.

MY08 V6TDi, Campanella White
My first Touareg love affair, found a new home locally.
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post #4 of 5 Old 07-20-2018
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My 2005 R5 has the same "feature".

Sent from my SM-G960F using Tapatalk
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post #5 of 5 Old 08-13-2018
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Touareg: 2014 V6 TDI
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Also chasing this down on our 2006

Just purchased a pair of aftermarket check valves and will be replacing them factory ones with working ones...

It's definitely a vacuum leak somewhere in the system. Could be faulty check valves, or these nice plastic hoses tend to crack where they are formed in place at the fittings.

I've inspected/ replaced all of the faulty lines so now it's check valve time...

2014 Touareg TDi Executive Package
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