Audi brakes

Audi brakes: Common problems and possible causes

In Brakes by Steves Auto Repair and Tire

When it comes time to replace the brakes on your Audi, it’s important to make sure you’re using good quality parts. 

Audis are kind of known for being performance vehicles, and some Audis have a higher performance than others. So, the types of brakes you should use can even differ between models. 

For an Audi A4, you’ll want to use brake pads, rotors and calipers, if those are the parts that need to be replaced. Other performance vehicles may require cross drills and slotted rotors to help dissipate the heat.

While changing the pads, we use pads with sensors built into them. They should be high quality, because the way the electronics work in setting off the lights, saying whether the pads are good or getting worn, you don’t want to have too high resistance or something throwing the computer off. So, you really don’t want to use the cheap pads.

Noises from Audi brakes

Noise is a common issue with Audi brakes, and it can be the result of various culprits. 

Rotors can begin to rust up on vehicles that have been sitting for a while, especially when it’s been raining a lot or snowing during the winter. When you first hit the brakes, they may sound as though they’re grinding. It’s really surface rust. Sand and rocks can get caught up in the pads and rotors, causing grooves to form. So, the grinding noise could actually be from the grooves.

Brake noise can even be caused by cleaning your Audi.

The chemicals sprayed on the vehicle and the wheels to remove the brake dust can get onto the brake pads and rotors. There may not be anything wrong with these parts, but the pads pressing on the rotors may lead to a squeaking or squealing sound.

After washing your vehicle, we recommend taking it on a test drive to help get rid of the chemicals. During the test drive, go to a safe area and perform five panic stops where the Anti-Lock Braking System (ABS) is engaged. Then, take it back, let it sit, and take it for another test drive after it cools down to see if the noise disappears.

Calipers and brake hoses

The calipers, especially the caliper slides, can also be an issue. Depending on the amount of salt on the road or where the vehicle comes from, the caliper may not release correctly after you step on the brakes. If it’s holding – even if you don’t feel it as you’re driving – it’s pressing the brake pad against the rotor. This means it will wear down faster. 

Brake hoses going bad is another problem we’re seeing. Vehicles are coming in after having a brake job or the calipers replaced and one of the corners is seizing up. The brake hoses are acting as a check valve and maintaining the pressure. So, we strongly recommend changing the brake hoses and the calipers at the same time. 

Whether or not we’re just replacing the pads and rotors or the calipers, it’s a good idea to have a brake fluid exchange conducted. This service should be done at least every 50,000 miles. Based on the type of vehicle and what the manufacturer recommends, we’re seeing brake fluid recommendations come down as soon as 15,000 or 30,000 miles. Check your owner’s manual to see what the interval for your particular car should be.

Depending on the kind of Audi you own and Advanced Driver-Assistance Systems (ADAS) it has – ABS, traction control, accident avoidance, automatic driver assist – make sure the ADAS is recalibrated. To do an alignment or certain service work, such as replacing the timing belt, the front grill of the vehicle needs to be removed. Not resetting the ADAS system can cause other driving issues and may feel like a brake problem. If your vehicle has been in a body shop, verify that it has been recalibrated so it doesn’t feel like a different problem.

Steve’s Auto Repair & Tire is an authorized Goodyear tire dealer located in Woodbridge, Virginia. Automotive repair services are performed on all makes and models, including BMW and Mercedes. Services include oil changes, brakes, alignments, inspections, and computer engine diagnostics.