Hydraulic unit TCS/ESP, check of internal leakage
Hydraulic unit TCS/ESP, check of internal leakage |
Check |
2. |
Remove both rubber plugs on the hydraulic unit.
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4. |
Get a colleague to start the car.
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5. |
Depress the brake pedal and then release it after a short time.
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6. |
Check whether any of the pins/bolts move up/down. Repeat the procedure a couple of times.
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7. |
If any of the pins/bolts move visibly, then there is a leak in the valves.
Change hydraulic unit.
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8. |
If none of the pins/bolts move then the fault is in another of the brake system's components. Remove the pins/bolts and refit the rubber plugs before continuing fault diagnosis.
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