Check Brake Caliper Supports Of Front Axle, Replace If Necessary (Code: VS2BREMTRA) - SM42.10-S-0047A

Model 447.### ## as of 840110 up to 858840 

Example illustration: Location of marking on cast batch (2) in upper area of brake caliper support (1) 

Courtesy of MERCEDES-BENZ USA

Example illustration: Location of marking on cast batch (2) in lower area of brake caliper support (1) 

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
	Risk of accident  when commissioning the vehicle due to a lack of braking effect when the service brake is operated for the first time after repair work.	Before starting the engine, actuate brake pedal several times until pressure is built up and maintained in the brake system.	AS42.50-Z-0002-01A
	Risk of poisoning  from swallowing brake fluid. Risk of injury  from skin and eye contact with brake fluid	Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid.	AS42.50-Z-0001-01A
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
Notice	Notes on repairs to brake system		AH42.00-P-0003-01A
Notice	Brake fluid notes		AH42.50-P-0001-01A
	General information on malfunctions in the brake system		AH42.30-D-2007-01KOA
	Check
1	Check whether vehicle is affected by measure.	Affected vehicles: Check brake caliper supports of front axle, replace if necessary (code: VS2BREMTRA) For authorized Mercedes-Benz service partners, only the entry in the "Extended VEGA Application" (EVA) system, in the "Current" tab is decisive. An additional test of the affected vehicles in the workshop information system (WIS) or vehicle list is thereby not necessary.	SM42.10-S-0047-01AAA
	Remove
2	Raise vehicle.
			AR00.60-S-1000E
3	Remove wheel and tire assemblies (left and right) of front axle.
			AR40.10-S-1100E
	Clean
4	Clean brake caliper supports (1) at left and right in area of cast batch marking (2).	Depending on the design of the brake system, the cast batch marking (2) may be located at either the top or bottom on the brake caliper support (1). Assembly cleaner	*BR00.45-Z-1028-04A
	Check
5	Check the cast batch marking (2) on the brake caliper support (1).	Depending on the design of the brake system, the cast batch marking (2) may be located at either the top or bottom on the brake caliper support (1). Perform the test with a flashlight and inspection mirror (3) (as shown). Replace all brake caliper supports (1) with cast batch marking (2) "1A13".  Commercially available devices/tools  Inspection mirror If the left or right brake caliper support (1) does not have the cast batch marking (2) "1A13", ↓ the respective brake caliper support (1) is not affected by the measure. continue with operation step 16. If the left or right brake caliper support (1) has the cast batch marking (2) "1A13", ↓ the respective brake caliper support (1) is affected by the measure and must be replaced. Continue with operation step 6.
	Remove
6	Remove cap of brake fluid reservoir.
7	Remove respective brake caliper (5) and hang to one side.
		Use a cable tie to fix respective brake caliper (5) in place at suitable position. Do not apply any tensile force to the brake hose of the brake caliper (5). Otherwise the brake hose may be damaged. Do not release brake hose. The brake hose remains connected to the brake caliper (5).  The screws (6) and the cover caps are replaced. Dispose of removed component parts properly. Observe the applicable legal requirements and specifications of the relevant country.	AR42.10-S-0070E
8	Remove brake pads from brake caliper support (1).	Brake pads are reused.
9	Remove sliding plates (7) from brake caliper support (1).	Sliding plates (7) are reused.
10	Remove respective brake caliper support (1).	For this purpose, remove bolts (4). The removed brake caliper support (1) and the screws (4) are no longer required. Dispose of removed component parts properly. Observe the applicable legal requirements and specifications of the relevant country.
	Clean
11	Clean respective working areas and component parts.	Assembly cleaner	*BR00.45-Z-1028-04A
		Brake caliper brush	Fig 1
	Install
12	Install respective new brake caliper support (1) and screw in new screws (4).	Screw/bolt, front floating caliper carrier to steering knuckle	*BA42.10-Z-1002-03KOB
13	Install previously removed sliding plates (7) into new brake caliper support (1).
14	Install previously removed brake pads.	Do not apply any brake paste or assembly grease. This can otherwise cause the brake system to malfunction.
15	Install respective brake caliper (5).		AR42.10-S-0070E
		Coat inside of screw cover caps (6) with assembly grease included in parts kit for brake caliper support (1). Otherwise, the screws (6) may suffer from corrosion. Use new screws (6) and new cover caps from parts kit for brake caliper support (1). Screw/bolt, floating brake caliper to floating caliper carrier	*BA42.10-Z-1003-03KOB
16	Mount wheel and tire assemblies (left and right) of front axle.
			AR40.10-S-1100E
17	Lower vehicle.
			AR00.60-S-1000E
18	Operate brake pedal.	Only if the vehicle is affected by the measure. Only correct the brake fluid level after actuating the brake pedal several times. The brake pads must make contact with the brake disk. Firm resistance should be noticeable at the brake pedal.
	Check
19	Check brake fluid level.	Only if the vehicle is affected by the measure.
		If the brake fluid level is below the "Min." marking, ↓ correct brake fluid level. In the event of a brake fluid level which has dropped due to brake lining wear only refill with brake fluid if the brake fluid level is below the "Min." mark. Do not invoice corrections to the brake fluid level as part of this service measure.	AP42.50-S-4210E
20	Install cap of brake fluid reservoir.	Only if the vehicle is affected by the measure.
21	Perform brake test on test stand.	Only if the vehicle is affected by the measure.
			AP42.00-S-4290E

Fig 1: Identifying Brake Caliper Brush (000 589 26 68 00)

Courtesy of MERCEDES-BENZ USA