Spark Plug Socket Size for the E39
Overview
When it comes to maintaining your BMW E39, one important task is changing the spark plugs. To successfully remove and install spark plugs, you’ll need the right tools, including a spark plug socket. In this article, we will discuss the spark plug socket size required for the E39 model.
Spark Plug Socket Size Chart
To make things easier for you, here is a handy chart that lists the spark plug socket size for the E39:
| Model Year | Engine | Spark Plug Socket Size |
|---|---|---|
| 1996-1998 | M52 | 5/8″ (16mm) |
| 1999-2000 | M52TU | 5/8″ (16mm) |
| 2001-2003 | M54 | 5/8″ (16mm) |
Steps to Change Spark Plugs
Now that you know the spark plug socket size for your E39, here are the steps to change the spark plugs:
- Start by ensuring the engine is cool before you begin.
- Locate the spark plug wires or ignition coils, depending on your E39 model.
- Using the appropriate size spark plug socket, carefully remove the old spark plug by turning it counterclockwise.
- Inspect the old spark plug for any signs of damage or wear. If necessary, replace it with a new one of the same type and heat range.
- Apply a small amount of anti-seize compound to the threads of the new spark plug to prevent it from seizing in the future.
- Insert the new spark plug into the socket and carefully thread it into the spark plug hole by hand. Make sure not to cross-thread it.
- Tighten the spark plug using the spark plug socket and ratchet. Be careful not to overtighten, as this can damage the threads.
- If you have ignition coils, reattach them to the spark plugs. If you have spark plug wires, reconnect them to the appropriate spark plugs.
- Repeat the above steps for each spark plug in your E39.
Conclusion
Changing the spark plugs in your BMW E39 is an essential maintenance task that can help ensure optimal engine performance. By using the correct spark plug socket size and following the steps outlined in this article, you’ll be able to complete the job with confidence. Remember to consult your vehicle’s manual or seek professional assistance if you encounter any difficulties. Happy wrenching!