Servicing BMW 1 Series 2008-2013 Brakes - Tire Review Magazine

Servicing BMW 1 Series 2008-2013 Brakes

The BMW 1 Series might be the least expensive BMW, but it shares a lot of the procedures that are common when it comes to servicing brakes on larger BMWs.


The BMW 1 Series might be the least expensive BMW, but it shares a lot of the procedures that are common when it comes to servicing brakes on larger BMWs.

BMWs can be one of the most confusing cars to order parts for because some parts specialists like to talk in chassis or platform numbers instead of year, make and model. The BMW 1 Series is no different. To BMW drivers and parts pros, the first-generation of the 1 Series goes by the designations of E81 (2-door hatchback), E82 (2-door coupe), E87 (4-door hatchback) and E88 (2-door convertible). 

Service Calculator

When an inner brake pad reaches 5mm of material, it triggers the wear sensor. The sensor causes a warning in the “Condition Based Services” menu explaining the brakes will need to be serviced within a recommended mileage. If the car is still equipped with a functioning TeleServices system, it will set the mileage so it falls with other services like an oil change. This can “bundle” these together, so the customer does not have to make multiple trips to the dealer. The service messages typically will indicate that service is due or recommended, but the recommended mileage will usually never exceed 2,500 miles. If you are performing any service work or replacing the brake pads, you need to reset the reminder using a scan tool or by going in through the driver information center.

Figure 1

Front Brakes

The 1 Series has two front brake options. The first is a single-piston floating caliper. BMW does not recommend cleaning the caliper bracket pad guides with a wire brush or bench grinder (see Fig. 1). Instead, the recommended procedure is to clean them with a solvent and apply a thin layer of brake paste or high-temperature brake lubricant. This method is recommended because the bracket is plated with an anti-corrosion layer that can be removed. In the BMW service information, it suggests that the anti-rattle clip needs to be replaced if it is older than four years.

The optional Brembo brakes have six pistons and the pads are mounted to guide pins. The pads need to be properly seated on the guide pins. The pins should not be lubricated. When installing the pads, make sure not to damage the boots on the pistons. 

New brake pad sensors should be installed every time the pads are replaced. Water can enter into the brake pad’s wear sensor connector and change the resistance in the circuit. The change in resistance caused by the oxidation of the connector pins causes a warning in the instrument cluster to illuminate. The customer may report that the problem is intermittent, with the light going out once the connector has dried out during the next ignition cycle. The connector can be cleaned with electrical contact cleaner and sealed with dielectric grease. This tends to occur on vehicles with removable wear sensors that are not replaced along with the brake pads.

Rear Brakes

The rear brakes closely resemble the front brakes. To prevent damage to the plated surfaces on the caliper, only clean with solvent and lubricate. 

The optional Brembo package uses a two-piston caliper. The pads are held in the caliper with retaining pins and an expanding spring. 

Figure 2

Parking Brake

If new parking brake shoes are installed or it takes more than 10 clicks to set the parking brake, inspection and adjustment of the system are necessary.

  1. Pull up the boot on the lever.
  2. Pull up on the lever, and with a small flathead, press the stop (1) of the adjusting spring back to such an extent that the retaining hook (2) engages in the stop (1) (see Fig. 2).
  3. Unscrew one wheel stud on both rear wheels.
  4. Turn the wheel until the adjustment screw is visible in the tapped hole (see Fig. 3).
  5. Turn the adjusting screw with a screwdriver until the wheel cannot be turned anymore by hand.
  6. Release the adjusting screw eight to nine notches.
Figure 3

An adjustment with fewer than eight notches may lead to the brake shoes being damaged. Reducing the number of notches on the duo-servo brake to shorten lever travel is not permitted.

Check out the rest of the October digital edition of Tire Review here.

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