bmw e46 325xi electric solenoid valve in vacuum line

It doesn’t require many tools but gets a little tight and fiddly. Replacing the vacuum pump and boost control solenoid can be considered a medium difficulty job. How long will it take to replace the vacuum pump and boost control solenoid on a BMW N20? However, the vacuum pump itself and the associated gasket are the same processes between both models. The later models have an electronically controlled wastegate therefore, you don't have to replace the solenoid. The N20 boost solenoid is also worth doing at the same time for earlier models. A leak coming from your vacuum pump or an engine cover full of oil are additional signs that you may need to replace your vacuum pump. Improperly functioning turbocharger wastegateĪ sign you may need to replace your vacuum pump is if your car enters limp mode and displays a 'Drivetrain Malfunction' Warning light.By following the DIY, you’ll further your skill s while saving yourself a nice chunk of money. The job doesn’t require fancy specialist tools but does involve a critical engine component.

Replacing the vacuum pump is an excellent DIY to challenge your home-wrenching chops. The DIY process will be nearly the same as the earlier cars, requiring fewer steps. Also, replacing the boost control solenoid while everything is apart is a smart play.īMWs equipped with the N20 engine built after 2013 came with electronically actuated turbochargers. The pump is located on the back of the valve cover and is quite tricky to get to but is well worth the replacement. The vacuum pump provides a vacuum to the brake booster, wastegate actuators, exhaust flap controls, and various emissions components. A source of vacuum is needed during driving, making the vacuum pump a vital component. While driving, the turbocharger creates boost pressure in the intake, rather than vacuum pressure. A functioning vacuum pump is critical to a correctly performing turbocharged engine.

Bmw e46 325xi electric solenoid valve in vacuum line