Howto: Refurbish your subwoofer
Posted: Wed Aug 09, 2023 9:26 pm
There's a subwoofer on the rear parcel shelf in G50 Centuries, and for 20+ year-old cars it's very common for the foam mounting for that subwoofer to have vanished over the passage of time.
To inspect the subwoofer, first use a large plastic pry tool to take the grill cover off. Release the two clips in the front two corners, and then the cover will lift up.
The subwoofer's inner cone is supposed to be attached to the outer ring with foam - if your subwoofer looks mine, you need to fix it.
Fortunately for you, you can buy a Lexus 8" subwoofer foam repair kit from here for $22. Buy that kit. I also bought the optional Liquid Foam Sealer but I am not entirely sure what exactly that stuff does so it might work fine without it.
To remove the subwoofer, undo the four Philips-head screws around the edge of the unit.
Once these are undone, release the plastic clip that's holding the connection cable for the speaker. You will thank me for this shortly.
The speaker is attached to an unfeasibly short cable with a press-to-release connector on it - you'll have to get your hand in, press this and release the cable. The shorter part of the connector remains in the car and the longer part will come out with the speaker. In this picture, the speaker is at the lower side of the frame.
Remove the plastic cylinder from around the sub - it's glued on, so the best way to do this is to work slowly around underneath the cylinder to release it.
Repair the sub using the instructions that came with the kit... I will warn you that cleaning the existing foam off the speaker is probably 75% of the work involved in this process.
Assembly is the reverse of removal - remember to reconnect the plastic cable clip!
To inspect the subwoofer, first use a large plastic pry tool to take the grill cover off. Release the two clips in the front two corners, and then the cover will lift up.
The subwoofer's inner cone is supposed to be attached to the outer ring with foam - if your subwoofer looks mine, you need to fix it.
Fortunately for you, you can buy a Lexus 8" subwoofer foam repair kit from here for $22. Buy that kit. I also bought the optional Liquid Foam Sealer but I am not entirely sure what exactly that stuff does so it might work fine without it.
To remove the subwoofer, undo the four Philips-head screws around the edge of the unit.
Once these are undone, release the plastic clip that's holding the connection cable for the speaker. You will thank me for this shortly.
The speaker is attached to an unfeasibly short cable with a press-to-release connector on it - you'll have to get your hand in, press this and release the cable. The shorter part of the connector remains in the car and the longer part will come out with the speaker. In this picture, the speaker is at the lower side of the frame.
Remove the plastic cylinder from around the sub - it's glued on, so the best way to do this is to work slowly around underneath the cylinder to release it.
Repair the sub using the instructions that came with the kit... I will warn you that cleaning the existing foam off the speaker is probably 75% of the work involved in this process.
Assembly is the reverse of removal - remember to reconnect the plastic cable clip!
