Vacuum hose for your car

Vacuum hoses in the car: where to find them & which defects occur

Vacuum hoses are installed in all cars in different versions. The reason for this is the fact that vacuum has a short reaction time, which makes vacuum hoses suitable for a wide range of applications. As a result, vacuum hose defects affect the entire system. We show you what defects are likely for vacuum hoses and how to replace them.

Why vacuum?

A car is equipped with an extensive vacuum line, fulfilling several tasks: All energy which is not powered by the battery is generated by the engine combustion. The developing exhaust generates pressure and when this pressure is relayed, it causes vacuum. In the past vacuum was generated by the engine. Nowadays the vacuum pump fulfills this task. The vacuum hose operates the side doors and the boot lid, supports the power steering, enables central locking and optimises braking power.

Frequent faults

Vacuum hose failure often occurs in connection with the brake booster. Not always the vacuum hose is faulty; membranes and valves can get damaged as well. In order to ensure the highest possible compatibility and sealing performance, always use original spare parts at all times. Vacuum hoses consist of a rubber mix, maintaining optimal flexibility and continuously withstanding pressure changes. By mixing several additives, the hose's life span and strength are improved. Vacuum hoses are not regular wear parts in a car and only need replacement in case of direct damage.

Symptoms for a vacuum hose defect

A defect of a vacuum hose is often immediately detected. Several symptoms are:

• the central locking no longer functions reliably
• braking performance is impaired and stuttering
• power steering fails and steering becomes considerably heavier
• Noise development when braking.

In all these cases a failure of one of the crucial components in the car's vacuum line is very likely. Such a defect has an immediate effect on the braking performance and therefore, you need to contact a garage without delay or undertake an immediate repair yourself.

How to replacing vacuum hoses

Unfortunately no clear-cut manual for vacuum hose replacement can be supplied as their application is so versatile. For all these repairs the utmost care is required as well as the use of fitting spare parts. Only the use of high-grade and original spare parts that match your car and its engine can guarantee lasting tightness of the system. Especially in the case of vacuum hoses it is better to opt for the more expensive, though better quality versions. When performing repair or replacement, observe correct installation of all membranes as well as sufficient tightening of the different clamps and connections. Working precisely ensures tightness and adequate performance of all vacuum-related systems.

Vacuum hose costs: what to expect

Narrow margins of material costs apply to vacuum hoses. For example, a vacuum hose for the brake system costs between 25 and 50 EUR ( ±£22 - £44), depending on vehicle, certainly not too much for an adequate braking function. An additional service fee applies to replacement in a garage. Repair can take between one and two hours. Therefore, count with 100 – 200 EUR (± £90 - £180) for a professional replacement of a vacuum hose. If you don't have enough time or confidence to undertake the replacement yourself, the garage is a good alternative. All in all, costs remain moderate, giving you the guarantee that all repairs are performed in a professional manner.