Brembo 09.A731.11 UV Coated Front Rotor for Mercedes C-Class CLK SLK C55 CLK55

Vehicle Fitment

• 2001-2007 Mercedes-Benz C-Class (W203 Sedan): C 32 AMG Kompressor (203.065); C 30 CDI AMG (203.018); C 55 AMG (203.076); C 320 CDI (203.020); C 350 (203.056); C 350 4-matic (203.087)
• 2001-2007 Mercedes-Benz C-Class T-Model (S203 Wagon): C 32 AMG Kompressor (203.265); C 30 CDI AMG (203.218); C 55 AMG (203.276); C 320 CDI (203.220); C 350 (203.256); C 350 4-matic (203.287)
• 2002-2008 Mercedes-Benz C-Class Sport Coupe (CL203): C 32 AMG Kompressor (203.765); C 30 CDI AMG (203.718)
• 2002-2009 Mercedes-Benz CLK Coupe (C209): CLK 55 AMG (209.376); CLK 500 - 5.0L (209.375) and 5.5L (209.372); CLK 350 (209.356); CLK 320 CDI (209.320)
• 2002-2010 Mercedes-Benz CLK Convertible (A209): CLK 55 AMG (209.476); CLK 500 - 5.0L (209.475) and 5.5L (209.472); CLK 350 (209.456); CLK 320 CDI (209.420)
• 2004-2011 Mercedes-Benz SLK (R171): SLK 55 AMG (171.473) - all power variants (265 kW and 294 kW)

Fitment Notes

• Front axle fitment only - sold individually (1 rotor per box); two units required for a complete front axle replacement
• Applies exclusively to the 345mm front brake configuration used on AMG, CDI high-output, and upper-displacement engine variants within these W203 and C209 generations - base C-Class variants (C 230, C 240, C 280, standard C 200) use a different, smaller front rotor and this part will not fit
• Verify your existing front rotor diameter is 345mm before ordering; this is straightforward with a tape measure across the swept face
• Mercedes-Benz OE cross-references: 2034210912 / A2034210912
• Wheel tightening torque: 110 Nm

Features

• UV paint treatment on all non-friction surfaces - including internal venting chambers - provides full corrosion protection immediately out of the box with no pre-cleaning required
• Water-based, solvent-free UV paint process - environmentally responsible and low-energy compared to conventional coating methods
• High-carbon cast iron alloy delivers enhanced thermal stability, superior heat dissipation, and reduced noise and vibration - particularly well suited to the high-load demands of AMG and performance variants
• Vented disc design with internal pillar geometry promotes effective airflow for heat management under repeated or performance braking
• Direct OE-equivalent replacement - bolt-on fit with no modifications required for all listed vehicles
• ECE-R90 certified - meets European safety standards for replacement brake discs
• Electronically balanced to tight manufacturing tolerances to minimize runout and pedal pulsation
• Includes fixing screw kit with all mounting hardware required for installation

Specifications

• Position: Front (Left or Right)
• Disc Type: Vented
• Outside Diameter: 345 mm (13.58 in)
• Nominal Thickness: 30 mm
• Minimum Thickness: 28 mm
• Overall Height: 47 mm
• Center Bore: 67 mm
• Lug Hole Count: 5
• Tightening Torque: 110 Nm
• Surface Finish: UV Coated / Smooth Plain
• Material: High-Carbon Cast Iron
• ABS Tone Ring: Not Included
• OE Cross-References: Mercedes-Benz 2034210912 / A2034210912
• Brembo Line: Prime (OE Replacement)

Included Components

• 1x Brembo UV Coated Vented Front Brake Rotor
• 1x Fixing Screw Kit (all mounting hardware included)

Product Description

The Brembo 09.A731.11 is a 345mm UV-coated vented front brake rotor from the Brembo Prime line, designed for the larger front brake configuration found on performance and upper-displacement variants of three Mercedes-Benz platforms: the W203/S203/CL203 C-Class (2001-2008), the C209/A209 CLK Coupe and Convertible (2002-2010), and the R171 SLK (2004-2011). Covered variants include the C 32 AMG Kompressor, C 30 CDI AMG, C 55 AMG, C 320 CDI, C 350, and C 350 4-matic across all W203 body styles; CLK 55 AMG, CLK 500, CLK 350, and CLK 320 CDI in both coupe and convertible C209 forms; and the SLK 55 AMG (R171) in both power output levels. Mercedes-Benz OE cross-reference is 2034210912 (also written A2034210912). Sold individually - two required per axle.

A critical fitment point: the 345mm rotor applies only to AMG, high-output diesel (CDI), and upper-petrol-engine trims within these platforms. Entry and mid-level W203 C-Class variants - C 200, C 230, C 240, C 280 - use a smaller front rotor and are not covered by this part. Measure your existing front rotor diameter before ordering if there is any uncertainty about which brake package your vehicle has. Brembo's UV coating on this rotor protects all non-friction surfaces before the rotor reaches the vehicle, using a water-based, solvent-free process that eliminates the need for brake cleaner prep at installation.