To get the AC and heater knobs to light up on a 1996 Volvo 850, you typically need to check the bulb behind the knobs, as they often burn out over time. Remove the trim around the climate control panel to access the bulbs, then replace any burned-out bulbs with new ones. Additionally, ensure that the vehicle's interior lights are functioning properly; if they aren't, it could be a fuse issue. If the knobs still don't light up after replacing the bulbs, consider checking the wiring or connections for any issues.
There's no Volvo 850 2000. What you likely saw was a S70.
Check and change the relay
Fix the problem and the light will go out. Normally on Volvo 850's the ABS sensor goes out (actually a wire comes loose inside the unit) this sensor is under the hood on the ABS unit.
Under the heater core behind the middle console where the radio is located.
it means that a bulb is burned out
To remove the heater control from the dashboard of a 1993 Volvo 850, first, disconnect the car battery to ensure safety. Then, carefully pry off the trim panel surrounding the heater control using a trim removal tool. Once the trim is removed, unscrew the screws securing the heater control unit and disconnect any electrical connectors. Finally, pull the heater control out of its housing to complete the removal.
The Volvo 850 has two horns in front of the radiator, lift the hood and their they are.
There's no 2.0L. Volvo 850 engine. Only 2.3L. & 2.4L. ...
To install a block heater in a Volvo 850, first ensure the engine is cool and disconnect the battery. Locate the freeze plug on the engine block, as the heater will replace this plug; you may need to drain some coolant. Remove the freeze plug and install the block heater according to the manufacturer's instructions, ensuring a tight fit and proper seal. Finally, reconnect the battery, refill the coolant if necessary, and test the heater by plugging it in before starting the engine.
Take the terminals off for five mins both of them
The diesel turbo can only fit on a Volvo 850 with a little fabrication.
anti pollution system warning ! Not critical at all .