MTC Ronak 1085 Drive Shaft Flex Joint

Drive Shaft Flex Joint for BMW and Mini

MTC Ronak 1085 is a drive shaft flex joint built for driveline service on select BMW and Mini applications. It is specified with a 78 mm bolt circle diameter, 10 mm bolt holes, 6 bolt holes, a 40 mm inside diameter, 110 mm outside diameter, and 28 mm thickness for direct-fit replacement use where those dimensions match the original part.

This part cross-references BMW OE numbers 26-11-1-204-294 and 26-11-1-207-785 for the same application.

Key Features

• Part number 1085 for driveline and axle service
• Drive shaft flex joint construction for torque transfer between driveline components
• 78 mm bolt circle diameter with 6-bolt mounting pattern
• 10 mm bolt holes for OE-style fastening geometry
• 40 mm inside diameter, 110 mm outside diameter, and 28 mm thickness
• Compatible with select BMW 318i, 318is, 318ti, Z3, 325i, 325is, 325iX, 325e, 325es, 524td, 528e, 320i, and Mini Cooper Countryman and Cooper Paceman applications

Detailed Description

MTC Ronak 1085 is a replacement drive shaft flex joint for vehicles that use a 6-bolt driveline coupling with the listed dimensions. It is used on BMW applications including 1977-1983 BMW 320i, 1984-1985 BMW 318i and 528e, 1984-1987 BMW 325e, 1985-1986 BMW 524td, 1986-1987 BMW 325es, 1987-1993 BMW 325i, 1987-1991 BMW 325is, 1988-1991 BMW 325iX, 1991-1999 BMW 318i and 318is, 1995-1999 BMW 318ti, and 1996-1998 BMW Z3. It also fits 2011-2014 Mini Cooper Countryman and 2013-2014 Mini Cooper Paceman applications. The part number 1085 is a practical match for driveline repair when the original flex joint has worn, cracked, or developed excessive play.

What It Helps Fix

• Driveline vibration caused by a worn flex joint
• Clunking or driveline lash during acceleration and deceleration
• Cracked or deteriorated coupling material
• Excessive movement at the drive shaft connection
• Noise from a failing driveline joint on BMW and Mini models

Installation Notes and Tips

Verify the bolt circle diameter, bolt hole diameter, inside diameter, outside diameter, and thickness against the original part before installation. Confirm vehicle application by model year and compare the existing flex joint to the listed dimensions for BMW 318i, 318is, 318ti, Z3, 325i, 325is, 325iX, 325e, 325es, 524td, 528e, 320i, Mini Cooper Countryman, and Mini Cooper Paceman. Proper driveline alignment and correct fastener fitment are important for a clean replacement.

Quality Assurance

MTC Ronak replacement parts are built for direct-fit driveline service using application-specific dimensions and OE cross-reference data. Part number 1085 is matched to the listed BMW OE references for the same application, helping support accurate selection during repair.