Important Note: Incorrect fluid level in a manual transmission can severely damage the gearbox. If you're not comfortable working on your car, take it to a qualified mechanic.
How to (potentially) check and add fluid (proceed with caution):
1. Locate the fill plug and drain plug: These are usually located on the transmission case itself. Consult your owner's manual for the exact locations. The fill plug is usually higher than the drain plug. They are typically square or hex-shaped.
2. Warm up the transmission: Drive the car for 15-20 minutes to warm the transmission fluid. This will ensure the fluid is at its proper viscosity for checking.
3. Park the car on a level surface and engage the parking brake.
4. Locate the fill plug: This will be your reference point. You will be adding fluid until it starts to run out of this hole.
5. Carefully remove the fill plug: Use the correct size wrench or socket to avoid stripping the plug. Have a drain pan ready, as some fluid may leak out.
6. Insert a clean funnel into the fill hole.
7. Slowly add the correct type of manual transmission fluid: Your owner's manual will specify the correct type and amount. Do not overfill. Use a syringe or small funnel to add the fluid.
8. Check the fluid level: Once you see the fluid begin to seep out around the fill plug opening (it might drip a little), you're at the proper level. Be careful not to add too much. If fluid flows freely, stop adding fluid immediately.
9. Replace the fill plug: Tighten it securely, but don't overtighten.
10. Check for leaks: After adding the fluid, inspect the area around the fill and drain plug for any leaks.
Because there's no dipstick, this method relies on observing fluid flow from the fill hole. This is less precise than using a dipstick and carries a greater risk of overfilling. Overfilling a manual transmission is as bad as underfilling it.
Recommendation: Unless you're experienced with car maintenance, it is best to take your car to a mechanic for a transmission fluid check and service. They have the proper tools and knowledge to do it correctly and avoid damaging your transmission. A low fluid level is a serious issue, and improper handling could cause significant and costly damage.
