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Febi 30129 Accessory Drive Belt Tensioner Assembly
| Brand | Febi 30129 |
|---|---|
| Housing Material | Aluminium |
| Material | Plastic |
| Operating Mode | automatic |
| Outside Diameter | 70.0 |
| Width | 30.0 |
| Fits | BMW · 22 vehicles |
Automatic tensioning. Maintains proper accessory belt tension without manual adjustment.
Aluminium housing. Adds strength with a lightweight, corrosion-resistant design.
Plastic pulley. Provides smooth belt tracking in the accessory drive system.
Cross-references 11 28 7 563 926 and 11 28 7 563 927 for the same application. See all 2.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Accessory Drive Belt Tensioner for BMW
Febi 30129 is an automatic accessory drive belt tensioner assembly built for auxiliary belt applications on select BMW models. It combines a plastic pulley with an aluminum housing to support stable belt tracking and consistent tension control in the accessory drive system.
Key Features
- Automatic operating mode for accessory belt tension management
- Plastic pulley with 30.0 mm pulley surface width
- 70.0 mm outside diameter
- Aluminum housing for the tensioner assembly
- Direct-fit replacement for select BMW auxiliary belt applications
- Febi part number 30129 for easy identification
Detailed Description
This Febi accessory drive belt tensioner assembly is specified for auxiliary belt service on BMW 135i, 135is, 335i, 335i xDrive, 335is, 535i, 535i xDrive, and 1 Series M applications. The automatic tensioning design helps maintain proper belt load as engine conditions change, while the aluminum housing and plastic pulley provide the construction details listed for this part. Febi 30129 also cross-references BMW OE numbers 11 28 7 563 926 and 11 28 7 563 927 for the same application.
What It Helps Address
- Accessory belt noise caused by weak or inconsistent tension
- Belt tracking issues related to a worn pulley or tensioner
- Reduced belt control in the auxiliary drive system
- Service replacement for a tensioner with worn housing or pulley surfaces
- Fitment-specific replacement needs on BMW auxiliary belt systems
Installation Notes and Tips
Fits 2008-2013 BMW 135i, N/A; Fits 2013 BMW 135is, N/A; Fits 2011-2013 BMW 335is, N/A; Fits 2011 BMW 1 Series M, N/A; Fits 2007-2010 BMW 335i, N/A; Fits 2009-2010 BMW 335i xDrive, N/A; Fits 2008-2010 BMW 535i, N/A; Fits 2009-2010 BMW 535i xDrive, N/A. Verify the auxiliary belt routing, pulley diameter, and housing style against the original part before installation. Confirm the vehicle’s belt system configuration matches the listed BMW application and notes.
Quality Assurance
Febi manufactures replacement components for European vehicle service, and this tensioner assembly is built to the listed material and operating specifications for the application. Part number 30129 is identified for BMW auxiliary belt service and is supported by the OE cross-reference numbers listed above.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2013 | BMW | 135i | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2013 | BMW | 135is | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2013 | BMW | 335is | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2012 | BMW | 135i | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2012 | BMW | 335is | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2011 | BMW | 1 Series M | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2011 | BMW | 135i | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2011 | BMW | 335is | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2010 | BMW | 135i | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2010 | BMW | 335i | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2010 | BMW | 335i xDrive | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2010 | BMW | 535i | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2010 | BMW | 535i xDrive | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2009 | BMW | 135i | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2009 | BMW | 335i | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2009 | BMW | 335i xDrive | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2009 | BMW | 535i | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2009 | BMW | 535i xDrive | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2008 | BMW | 135i | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2008 | BMW | 335i | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2008 | BMW | 535i | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
| 2007 | BMW | 335i | N/A | Additional information: for auxiliary belt; Outer Diameter 1 (mm): 70; Operating Mode: automatic; Housing Material: Aluminium; Pulley Material: Plastic; Pulley Surface Width (mm): 30 |
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