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Old 04-08-2016, 09:25 AM   #6 (permalink)
Ecky
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Join Date: Dec 2011
Location: New Zealand
Posts: 5,016

ND Miata - '15 Mazda MX-5 Special Package
90 day: 40.51 mpg (US)
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Some immediate suggestions:

-There are no aftermarket motor mounts for this car. You likely only need the rear, but the others might be cracked, if not broken. The rear is around $100 from G1parts, which is where I like to shop for original equipment. Some people repair their mounts by filling them with silicone, but you end up with more vibration.

-The trunk latch has two common problems:

1) If it doesn't unlock with the FOB or with the lock switch, it's because you have a minor roof leak at the passenger B pillar. There's a connector behind the plastic interior panel that corrodes. This can cause either no signal to the trunk latch actuator, or no power to it. The fix for this is to pull the panel off (takes 90 seconds) and clean the contacts, then put some dielectric grease on to prevent it from corroding again.

2) The trunk latch actuator has failed. If you press the button and hear a whirring sound, this means the plastic gear inside it has broken, and you'll need to replace it. There are inexpensive aftermarket options for this.

-There are plans for a super cheap grid charger in my build thread. You can probably get a few more years out of a weak battery with my $30 charger.
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