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Vacuum Line Brake Servo. Porsche 957 Cayenne S / Cayenne turbo ❭ 95535557930
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Brake Servo Vacuum Line
Restore safe and consistent braking performance with this OE
Match Brake Servo Vacuum Line. Manufactured to
original equipment specifications, this premium-quality replacement vacuum line
ensures a reliable vacuum supply to the brake servo (brake booster),
maintaining the light brake pedal feel and powerful braking assistance expected
from your Porsche.
Fits:
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Diagram ref no 12
The brake servo vacuum line is a vital part of the braking system. It transfers engine vacuum to the brake booster, reducing the effort required to apply the brakes. A damaged, leaking or deteriorated vacuum line can reduce brake assistance, resulting in a harder brake pedal and increased stopping distances.
Manufactured using durable, heat-resistant materials, this OE Match replacement is designed to withstand the demanding conditions of the engine bay while providing OE-quality fitment and long-term reliability.
What Does the Brake Servo Vacuum Line Do?
The brake servo vacuum line connects the engine's vacuum source to the brake servo (brake booster), allowing vacuum pressure to assist braking.
Its functions include:
- Supplying vacuum to the brake servo.
- Reducing brake pedal effort.
- Maintaining consistent brake assistance.
- Supporting safe and predictable braking performance.
- Helping optimise emergency braking capability.
- Ensuring efficient operation of the brake booster system.
Without adequate vacuum, the brake servo cannot provide the assistance required for comfortable and effective braking.
Why Does the Brake Servo Vacuum Line Fail?
Vacuum lines are continually exposed to heat, vibration and engine movement, causing them to deteriorate over time.
Common causes of failure include:
- Age-related hardening of the hose.
- Heat damage from the engine bay.
- Cracks or splits developing in the line.
- Perished rubber connectors or seals.
- Damage during engine repairs.
- Loose or damaged fittings.
- Oil contamination degrading the hose material.
Even a small vacuum leak can significantly reduce brake servo performance.
Symptoms of a Failing Brake Servo Vacuum Line
Common signs include:
- Hard brake pedal.
- Increased pedal effort.
- Hissing noise from the engine bay.
- Reduced brake servo assistance.
- Poor braking feel.
- Vacuum leak fault codes.
- Cracked or visibly damaged vacuum hose.
- Reduced engine vacuum efficiency.
If any of these symptoms are present, the vacuum line should be inspected and replaced if necessary.
When Should the Brake Servo Vacuum Line Be Replaced?
Replacement is recommended when:
- Vacuum leaks are detected.
- The hose becomes cracked or brittle.
- Brake servo assistance is reduced.
- Engine work requires removal of the vacuum line.
- Carrying out preventative maintenance on older vehicles.
- Replacing the brake servo or associated vacuum components.
Replacing a deteriorated vacuum line helps restore braking performance and prevents future vacuum leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95535557930
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