SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSBMW2013128I 2D CONVERTIBLE, ENG CD N52, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1950 (BRAKES - REPAIR)BRAKE TESTING AND BLEEDING34 00... CHECKING BRAKE DISCSNECESSARY PRELIMINARY TASKS
2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans

Necessary preliminary tasks

2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION Necessary preliminary tasks
WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.

Checking thickness difference:

  • Measure thickness difference within brake surfaces at 8 point (spread over the circumference) with a micrometer gauge
  • Compare measurement result with setpoint value  See FRONT BRAKE, BMW, E70 or REAR BRAKE, BMW, E70
Fig 1: Measuring Thickness Difference Within Brake Surfaces Using Micrometer Gauge
G08528071Courtesy of BMW OF NORTH AMERICA, INC.

Check minimum brake disc thickness:

  • Position special tool 34 1 280 at three measuring points in area (1) and measure.
  • Compare measurement result and lowest value with setpoint value  . See FRONT BRAKE, BMW, E70 or REAR BRAKE, BMW, E70 .
    Fig 2: Checking Minimum Brake Disc Thickness Using Special Tool (34 1 280)
    G08528072Courtesy of BMW OF NORTH AMERICA, INC.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.