Overview. Manual-climate W123s use a different heater valve from cars with Automatic Climate Control III. This replacement restores reliable heat control and leaking valves.
Fitment
- For W123 with manual climate control, including 240D (replaces 123 830 2084)
- Not for ACC III cars: see our BVX-1 valves for automatic climate control systems
Cross-reference part numbers (this valve replaces):
- Mercedes-Benz A 123 830 20 84, A1238302084, 1238302084, 123 830 20 84, 123 830 2084, 123-830-20-84, 123.830.20.84
What’s included
- 2-Zone manual heater control valve for W123
Good to know
- Warranty: 24-month limited
- Lead time: built to order, up to 10 business days




