Mercedes-Benz Sprinter 3500 Not able to change gears Inspection at your home or office.

Common reasons for this to happen:

• *Low Fluid in Transmission - Both manual and automatic transmissions require fluid (different types) in order to operate. If the fluid is low, there’s a chance that you won’t be able to change gears, particularly in an automatic transmission. This also causes immense damage to the transmission itself. However, it’s more likely that you would be able to shift, but the transmission would not move the car.

• Low Fluid in Master Cylinder: If you’re driving a stick shift and it has a hydraulic clutch, one of the first suspects is low fluid in the clutch master cylinder. This is generally caused by a leak in the system (you may notice fluid on your clutch pedal).

• Broken Clutch Cable: If you have a cable-operated clutch, it’s possible that the cable has broken. If the pedal goes to the floor without engaging the clutch, this would the one of the primary possibilities.

• Failed Brake Light Switch: If you’re unable to shift out of park with an automatic transmission, the most likely culprit is the brake light switch. It’s mounted to the brake pedal and designed to engage the shift lock solenoid if it detects that your brake lights aren’t working.

• Bad Sequencers: If you’re able to shift out of a gear, but when you attempt to shift into the next sequential gear, you hear a grinding sound, chances are good that the sequencers are failing or have failed. You should be able to shift to the next highest gear without trouble if this is the problem.