Overview. Bosch duo-valves and their repair kits are no longer made, and rebuilt units still stick at high RPM. Each BVX-7 / BVX-8 is built to order as a reliable replacement. Lead times apply of up to 6o days.
Features
- Vehicle-specific, drop-in replacement: mounts to the original brackets, hoses and electrical connector
- Reliable at high engine RPM and in extreme temperatures, where Bosch valves stick
- Field-rebuildable internals for years of like-new operation
- Built with technology from late-model vehicles
Fitment
Fits W126 and some R107 with a Bosch duovalve. Whether your car has a duovalve, and which one, depends on the market and options it was built with, so we don’t list individual models. Verify by part number or visually before ordering: check your car’s part number in Mercedes EPC and match it to the cross-reference list below, or see the product image showing the top view of the valve mounted in the car, which shows how to tell the 3-barb BVX-7 and 4-barb BVX-8 apart.
- W126: either the BVX-7 or the BVX-8 may fit, depending on your car.
- R107: only the BVX-7 fits, and only if your car was fitted with a duovalve. Most R107s use a monovalve: see the BVX-2 (#15).
Cross-reference part numbers (this valve replaces):
- BVX-7: Mercedes-Benz A 126 830 00 84, A1268300084, 1268300084, 126 830 00 84, 126 830 0084, 126-830-00-84, 126.830.00.84; Bosch 1 147 412 004, 1147412004
- BVX-8: Mercedes-Benz A 000 830 38 84, A0008303884, 0008303884, 000 830 38 84, 000 830 3884, 000-830-38-84, 000.830.38.84; A 126 830 38 84, A1268303884, 1268303884, 126 830 38 84, 126 830 3884, 126-830-38-84, 126.830.38.84; Bosch 1 147 412 011, 1147412011
- Both: Mercedes-Benz A 000 835 06 44, A0008350644, 0008350644, 000 835 06 44, 000 835 0644, 000-835-06-44, 000.835.06.44
- Both: Bosch 1 147 213 007, 1147213007
What’s included
- BVX-7 or BVX-8 dual heater control valve
Good to know
- Lead time: built to order, up 60 calendar days. Contact us for current lead time before ordering.
- Warranty: 1 year from date of purchase
- International: request a shipping quote before ordering (online checkout is U.S. only)
