BMW V8 M60 M62 Vacuum Leak – Throttle Body and Front Intake Manifold Plate Gasket, 540i, 740i, 740il, 840i, X5
This answer is applicable for many BMWs in addition to the one listed below.
car year: 2002 car model: 540i I found out that the leak in my car is not the check valve as earlier advised but a gasket leak on a plate at the throttle valve body. This seems to be an easy repair? My shop quoted almost $700 to fix my vacuum leak? Does this seem ok?
The BMW M60 and M62 V8 engines do have a common issue with vacuum leakage at the throttle body mounting plate to intake manifold junction. Engine heat causes the lower part of the gasket to dry, shrink and crack, allowing a vacuum leak. This applies to all V8 models (except M5) from 1993 through 2001 (540i, 740i, 740il, 840i, 840ci, X5, Z8), plus 5-series (540i) and X5 through the mid 2000s.
The gasket between the throttle body mounting plate and the front of the intake manifold is easy to replace. On models up through ’98, the throttle body and the mounting plate are cast as one piece and there is just one gasket between the plate and the manifold. Models from ’99-on have a separate aluminum throttle body that is mounted to a plastic mounting plate. The mounting plate gasket is the one that generally causes the vacuum leaks but we recommend replacing the throttle body gasket as well.
The gasket is easy to replace, simply remove the six bolts that secure the mounting plate to the front of the intake manifold and pull the throttle body and plate off. Remove the gasket, install a new one and reinstall the assembly. On the later models, also remove the four bolts that secure the throttle body to the mounting plate and remove and replace the smaller throttle body gasket.
For the proper throttle body and mounting plate gaskets, call our advisers at 800-535-2002 or go to our online store by clicking the links below.
Gasket for throttle body to manifold, for most models through ’98
and throttle body mounting plate to manifold, for most models 99 through mid-2000s: