Coolant Flush
August 2026 · Winter Haven
2014 BMW 528i xDrive

Jerking When Accelerating and Check Engine Light
What the customer reported
The vehicle was experiencing jerking when accelerating and the check engine light was illuminated.
What we found and did
The technician found that the coolant was acidic, which could damage the water pump, radiator, and thermostat. The team performed a complete coolant system flush using a BG machine to withdraw and flush out all fluids from the engine and radiator. They then refreshed the system with new BG fluid. Additionally, they replaced the valve cover, radiator, coolant reservoir, hoses, spark plugs, and one ignition coil.
Result
The vehicle's performance improved, and the check engine light was no longer illuminated.
Pro tip
If your vehicle jerks during acceleration, it might be due to issues with the ignition system or coolant condition. Addressing acidic coolant early can prevent costly damage to your engine's components.