The CSF 7064 is an all-aluminum high-performance radiator for the 1997-2003 BMW E39 540i (4.4L V8, manual and automatic) and the 1999-2003 E39 M5 (4.9L V8, manual). It uses a 2-row 42mm dual core with CSF's B-Tube Technology and multi-louvered 6.5mm fins. It is all-aluminum with CNC-machined quick-connect connections, all-aluminum race-style drain plugs, and a smooth satin finish, and it is a drop-in fit. Pre-September-1998 540i models require OEM cooling-system updates, and post-September-1998 automatic 540i models need a minor modification to the left drain plug.
- Type: all-aluminum performance radiator
- Core: 2-row, 42mm dual core, B-Tube Technology
- Fins: multi-louvered, 6.5mm fin height
- Engines: 4.4L V8 (540i), 4.9L V8 (M5)
- Transmission: 540i manual and automatic; M5 manual
- Drain: all-aluminum race-style plugs
- Finish: smooth satin
- Fitment: drop-in (see transmission/date notes)
- Part number: 7064
Vehicle Applications
Direct fit on the following:
- 1997 BMW 540i (E39)
- 1998 BMW 540i (E39)
- 1999 BMW 540i (E39)
- 2000 BMW 540i (E39)
- 2001 BMW 540i (E39)
- 2002 BMW 540i (E39)
- 2003 BMW 540i (E39)
- 1999 BMW M5 (E39)
- 2000 BMW M5 (E39)
- 2001 BMW M5 (E39)
- 2002 BMW M5 (E39)
- 2003 BMW M5 (E39)
FAQ
What vehicles does the CSF 7064 fit?
The 1997-2003 BMW E39 540i (manual and automatic) and 1999-2003 E39 M5 (manual).
Does it fit automatic 540i models?
Yes. Post-September-1998 automatics need a minor modification to the left drain plug; pre-September-1998 cars need OEM cooling-system updates.
How many rows is the core?
A 2-row 42mm dual core with CSF's B-Tube Technology.
Is it a drop-in fit?
Yes, with the noted transmission and build-date considerations.

