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Mazda MX-5 Miata Front Turn Signal Light Bulb Replacement Guide
How to change the front turn signal light bulbs in the headlight housing of a 4th generation 2016 to 2021 MX-5 Miata.

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By
Paul B. Michaels
Author & Photographer
Auto Mechanic Since 1989

 
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2018 MX-5 Headlight
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Turn Front Wheels
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Plastic Wheel Well Liner

This automotive maintenance tutorial was specifically written to assist owners of the 4th generation (2016, 2017, 2018, 2019, 2020 & 2021) Mazda MX-5 Miata in changing a burnt out front turn signal light bulb located in the headlight housings. The headlight bulbs are LED units that should last the life time of the vehicle.

Owners of other Mazda vehicles such as the Mazda2 (Demio), Mazda3 (Axela), Mazda5, Mazda6 (Atenza), CX-3, CX-5, CX-7, CX-9, RX-8 and MPV may also find these DIY instructions to be helpful.

The compatible replacement front turn signal light bulb part number is 7444NA.

If you would like to have brighter lights that last longer, install some 7444NA LED bulbs.

The tools needed to access and replace the light bulbs include a small flathead screwdriver or a plastic pry bar tool and possibly also a pop rivet removal tool.

The first two steps are to turn the steering wheel all the way in the opposite direction of the burnt out front turn signal light bulb and then move to the wheel well closest to the bulb.

Turning the front wheels will create more working room in the wheel well to access the bulb.



 
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Pry Out Center of Fastener
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Pull Out Base of Pop Rivet
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Pop Rivet Removed
Locate the three black plastic pop rivet fasteners on the front of the wheel well liner or "splash guard".

Gently pry out the smaller round center part of the pop rivet with a small flathead screwdriver or with a plastic pry bar tool.

Then pry out the base of the fastener with a screwdriver or a pop rivet removal tool.

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Remove Inner Fastener
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Three Fasteners Removed
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Pull Back Splash Guard
There are two pop rivets along the outer edge of the wheel well liner.

The third is located further in near the middle of the tire.

Once all three pop rivets have been removed, set the fasteners aside in a safe place.

Gently pull back the wheel well liner to access the rear of the headlight housing.

You may be able to wedge the plastic liner against the tire to hold it in place.

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Turn Signal Bulb Socket
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1/4 Turn Counterclockwise
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Bulb Socket Removed
Locate the grey plastic bulb socket with a black electrical connector.

Rotate the bulb socket 1/4 turn in the counterclockwise direction before pulling it straight out of the housing.



 

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Pull Out Old Light Bulb
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Empty Bulb Housing
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OEM Stanley 7444NA
Carefully pull the old light bulb straight out of the socket.

If you have trouble removing a stuck, stubborn or rusted in light bulb, put on some gloves and try gently wiggling the bulb back and forth while pulling it straight out.

Avoid using excessive pressure to prevent from having the bulb shatter and possibly injure yourself.

The original OEM light bulb in this 2018 MX-5 Miata was a Stanley 7444NA 12V28/8W.

Push a new number 7444NA light bulb straight into the socket.

If you would like to have brighter front turn signals, install some compatible replacement 7444NA LED bulbs.

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Push In New Light Bulb
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1/4 Turn Clockwise - Lock
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Bulb Socket Secured
Re-insert the bulb socket into the housing and rotate it 1/4 turn in the clockwise direction to lock it into place.
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Replace Plastic Liner
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Re-Insert Pop Rivets
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Push In Center - Lock
Push the plastic wheel well liner back into place.

Make sure the pin in the center of the fasteners are in the up (released) position.

Push the pop rivets back into the wheel well liner.

Push in the pin in the middle of the pop rivets to secure the fasteners.

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Replace 2nd Fastener
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Push In Middle To Secure
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Test New Turn Signal
Double check that the three fasteners are secure.

To test the new front turn signal light bulbs, activate the hazard signals.

Be sure to record the bulb change in your car's service records.

For more, check out all of my 2016-2021 Mazda MX-5 Miata DIY Repair & Maintenance Guides.
 

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