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General question re manual cars and brake fluid

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Old Feb 12th, 2020, 17:55   #1
PierreC
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Default General question re manual cars and brake fluid

Does anybody know (or can somebody with access to VIDA advise) whether the Volvo work instructions for the brake fluid replacement every second year, include the flushing of the clutch hydraulic circuit on a manual transmission car?
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Old Feb 12th, 2020, 19:24   #2
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I can't answer that question but I did flush the clutch fluid on a 23 year old Land Rover a few weeks back and it absolutely transformed the pedal feed. The oil fluid came out like toothpaste...
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Old Feb 13th, 2020, 00:24   #3
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I wouldn't bother to change clutch fluid as often as every two years. Five, perhaps.
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Old Feb 13th, 2020, 09:35   #4
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The service schedule indicates brake fluid replacement should be carried out every 2 years. There is no mention of clutch fluid replacement as such. Whether dealers bleed the clutch circuit at the same time as the brake fluid is replaced I don't know, but I suspect it is doubtful.
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Old Feb 13th, 2020, 11:18   #5
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Quote:
Originally Posted by PierreC View Post
Does anybody know (or can somebody with access to VIDA advise) whether the Volvo work instructions for the brake fluid replacement every second year, include the flushing of the clutch hydraulic circuit on a manual transmission car?
no it does not include the clutch system ...
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Old Feb 13th, 2020, 13:53   #6
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If anyone has an older car and issues with clutch pedal operation and feel - I would strongly recommend changing the fluid - it's easy to do and low cost and often makes a noticeable difference on older cars.

Of course if it is a shared reservoir, you should do brakes and clutch together - just regard the CSC as a 5th brake caliper.
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Old Feb 18th, 2020, 19:56   #7
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Originally Posted by Tannaton View Post
If anyone has an older car and issues with clutch pedal operation and feel - I would strongly recommend changing the fluid - it's easy to do and low cost and often makes a noticeable difference on older cars.

Of course if it is a shared reservoir, you should do brakes and clutch together - just regard the CSC as a 5th brake caliper.
I fully agree but I doubt if the dealers do it - hence there is also a risk of corrosion in the clutch master or more likely the slave cylinder (brake fluid is hygroscopic, which is why replacement is recommended every 2 years).
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Old Feb 18th, 2020, 21:37   #8
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I fully agree but I doubt if the dealers do it - hence there is also a risk of corrosion in the clutch master or more likely the slave cylinder (brake fluid is hygroscopic, which is why replacement is recommended every 2 years).
No it is not part of the brake fluid change , The master cylinder is plastic and never leaks or gives trouble . Cant say the same for the slave cylinder though . It has a hard life .
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