Q: Oil leak and Check Engine Light is on

asked by on

Oil leak. Just had rear main seal and oil cooler fixed. Still leaking oil and check engine light on again!!!!!

My car has 83000 miles.
My car has an automatic transmission.

Hi there. Thanks for writing in. In some cases, the oil leaking from the vehicle after a rear main seal and oil cooler are repaired is caused by residual oil that was not cleaned or removed from the vehicle after the service was complete. However, it’s also possible that an oil line was not fully tightened or perhaps another part is leaking; that simply was masked by the oil coming from the main seal or oil cooler.

My advice would be to have a local professional mechanic, such as one from YourMechanic, complete an engine oil leak inspection. This service will allow the mechanic to determine if something was left loose during the original repair, or if something else is causing the leak.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Oil leak and Check Engine Light is on

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: Brakes locking up

The brake pedal being hard to push is telling me that there is a problem with your brake booster. The booster uses engine vacuum to help you apply force to the brake pedal. When the booster is not working this...

Q: Auto climate control

Even without having specified what model Mercedes, yes they do use in car temperature sensors. Your issue can be related to the in-car temperature sensor or the climate control unit itself. Since Mercedes climate control systems are known for their...

Q: Q: Throttle Position Sensor

The throttle position sensor is a very common part on most cars, however it is specific to your vehicle's engine application. This is something that ca be purchased at most local auto parts stores (i.e. Autozone, Oreily's, etc.) relatively inexpensively....

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...