See also:

SRS Care
The SRS is virtually maintenance-free and so there are no parts you can safely service by yourself. If the SRS air bag warning light "" does not illuminate, when you turn the ignition on ...

Engine
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Brake/clutch fluid
Check brake fluid level in the brake fluid reservoir. The level should be between “MIN” and “MAX” marks on the side of the reservoir. Use only hydraulic brake fluid conforming to DOT 3 or DOT 4 sp ...