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Engine Covers Removal
 
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Pelican Technical Article:

Engine Covers Removal

Nick Czerula

Time:

1 hour1 hr

Tab:

$0

Talent:

***

Tools:

Set of sockets (10mm), T30 Torx socket, flathead, Phillips screwdrivers

Applicable Models:

BMW Z3 Coupe/Conv (1996-02)

Hot Tip:

Work with a cool engine.

Performance Gain:

Access to engine

Complementary Modification:

Replace mounting insulators

When servicing the engine on a BMW Z3, you may have to remove the engine covers to access specific components. In this article I will show you how to remove the covers, providing easy access to the top and rear of the engine.

To avoid marring the paint and trim, work with a plastic prying tool or wrap a screwdriver tip with masking tape before prying out body or interior items.

Keep in mind that when your car was serviced before, parts may have been replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have, so be prepared with different size sockets and wrenches. 

Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If you're working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Do not work on your vehicle if you feel the task is beyond your ability. 

Vehicle models change and evolve, as they grow older, so the vehicle shown in our illustrations may vary slightly from yours. If something seems different, let us know and share your info to help other users. Do you have questions or want to add to the article? Leave a comment below. When leaving a comment, please leave your vehicle information.

Models with 4-cylinder engine:
Models with 4-cylinder engine - 4-cylinder models have two small engine covers; one on the cylinder head (yellow arrow), and one that covers the throttle linkage (green arrow).
Figure 1

Models with 4-cylinder engine - 4-cylinder models have two small engine covers; one on the cylinder head (yellow arrow), and one that covers the throttle linkage (green arrow). It is more common for you to have to remove the cylinder head cover. However I will show you both in this procedure.

Models with 4-cylinder engine - Using a flathead screwdriver, rotate the engine cover locking tabs 90° counterclockwise (green arrows).
Figure 2

Models with 4-cylinder engine - Using a flathead screwdriver, rotate the engine cover locking tabs 90 degrees counterclockwise (green arrows).

Models with 4-cylinder engine - Then you can lever the cover up and remove it from the engine.
Figure 3

Models with 4-cylinder engine - Then you can lever the cover up and remove it from the engine.

Models with 4-cylinder engine - To remove the cover over the throttle linkage, loosen the fastener using a flathead screwdriver (green arrow).
Figure 4

Models with 4-cylinder engine - To remove the cover over the throttle linkage, loosen the fastener using a flathead screwdriver (green arrow).

Models with 4-cylinder engine - Then lift the cover up and pull out of throttle housing to remove.
Figure 5

Models with 4-cylinder engine - Then lift the cover up and pull out of throttle housing to remove.

Models with 6-cylinder engine:
Models with 6-cylinder engine - 6-cylinder models have two engine covers.
Figure 6

Models with 6-cylinder engine - 6-cylinder models have two engine covers. One on the cylinder head and one on the intake manifold. You can remove each one independently although for certain repairs you will have to remove both, for example; Ignition coils you remove only the cover on cylinder head. Valve cover gasket, you would remove both covers. Green arrow points to intake manifold engine cover. Yellow arrow points to cylinder head engine cover.

Models with 6-cylinder engine -To remove intake manifold side engine cover: using a small flathead screwdriver, pry out trim covers, remove 10mm fasteners (green arrows), then remove trim cover from engine.
Figure 7

Models with 6-cylinder engine -To remove intake manifold side engine cover: using a small flathead screwdriver, pry out trim covers, remove 10mm fasteners (green arrows), then remove trim cover from engine.

Models with 6-cylinder engine -To remove cylinder head engine cover: Remove engine oil cap.
Figure 8

Models with 6-cylinder engine -To remove cylinder head engine cover: Remove engine oil cap. Then, using a small flathead screwdriver, pry out trim covers, remove 10mm nuts (green arrows), then remove trim cover from engine.

Models with 6-cylinder engine -With cover removed, inspect mounting insulators, there are two and only used on cylinder head engine cover (green arrows).
Figure 9

Models with 6-cylinder engine -With cover removed, inspect mounting insulators, there are two and only used on cylinder head engine cover (green arrows). If insulators are worn, replace. When installing, do not over-torque fasteners and check that bulkhead seal is properly aligned. Install in reverse order of removal.

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Page last updated: Sat 12/3/2016 02:07:45 AM