A1, A1 German Prestige Specialists

A1 German Prestige Specialists

Independent BMW, Mercedes, Audi, VW, Porsche Service & Parts in Stevenage

Frequently Asked Questions

Brakes FAQ

Never compromise on your brakes. Let our team explore any potential issues with discs, pads, brake drums and we can also explore ABS issues.

How can I tell if my brakes need attention?

If your dashboard displays a brake warning light, bring your vehicle to our workshop for diagnosis. Other signs include a grinding noise when braking, which may indicate excessively worn pads. If the car pulls to one side, your brakes might be sticking or seizing. A spongy brake pedal or continuous pulsing could suggest a brake fluid leak.

More of our Brakes FAQs

My car is pulling to one side when braking, what can be done?

Uneven braking can result from sticking or seized calipers, unevenly worn brake pads, or problems with the suspension. We would be happy to check this issue and then the A1 workshop team can offer you a quote for a fix.

I have noticed vibrations when braking

Warped brake discs can cause vibrations or a pulsating feeling through the brake pedal when stopping. Sometimes we can have discs skimmed to repair this, although we always recommend disc replacements in this situation.

What does it mean if my brakes are making squeaking or grinding noises?

Noises from the brakes can indicate worn pads, lack of lubrication, or debris stuck in the braking system. Contact our team if you would like us to explore any brake related issues with your car, bike, motorhome or van.

I think my brake pads are worn, what can be done?

Brake pads wear down over time, causing reduced braking performance and potentially damaging the brake discs. If yours are getting low, please call us or book online and we can take a look and offer you the best advice and a competitive solution.

Why does my brake fluid need replacing?

Brake fluid transfers pressure from the pedal to the brakes and lubricates braking components. Over time, it absorbs moisture, which reduces its effectiveness. Manufacturers recommend replacing it every three years to ensure safe braking performance.

What is braking distance?

Braking distance is the distance a vehicle travels after the brakes are applied until it comes to a stop. It increases with speed and is affected by tyre grip, brake condition, and road or weather conditions. To ensure your brakes are in good condition, consider booking a full vehicle check.

What is brake horsepower?

Brake horsepower (BHP) measures the usable power an engine produces, accounting for energy losses through friction in components like the gearbox and differential.

What is a parking brake?

Also known as a handbrake or emergency brake, it is used to keep a vehicle stationary when parked. Typically located as a lever or button, it controls the rear brakes and operates independently of the main braking system.

What are regenerative brakes?

Found in electric cars, regenerative brakes recover energy lost during braking by converting it into electricity, which is stored in the car’s battery. This increases efficiency compared to traditional systems, where energy is lost as heat.

What is engine braking?

Engine braking slows a car by releasing the accelerator and shifting down gears. This restricts airflow to the engine, creating resistance and decelerating the vehicle. It is most effective in lower gears but should be used carefully to avoid exceeding the engine’s RPM limit.

What are brake pads made of?

- Metallic/Semi-Metallic Pads: Made from metals like iron, copper, and steel, they are durable and cost-effective, ideal for everyday driving but heavier.
- Organic Pads: Composed of non-metallic materials like glass and Kevlar, they are eco-friendly but less durable, best suited for lightweight vehicles.
- Ceramic Pads: Made from ceramic fibres, these are lightweight and durable, offering excellent performance under heavy braking but are more expensive, making them suitable for performance vehicles.

How often should I change brake fluid?

Brake fluid absorbs moisture over time, reducing braking efficiency. Manufacturers recommend changing it every 20,000–40,000 miles or every 2–3 years. We advise replacing brake fluid every 3 years to maintain safety.

How long do brake discs last?

The lifespan of brake discs depends on the vehicle and driving style. Generally, brake discs last longer than brake pads, but when they become too thin, you may notice the car pulling to one side. If you’re unsure about their condition, book a brake test for peace of mind.