Obviously you have a fuel leak somewhere.
radiator plugged.or coolant low
your vehicle may smell like antifreeze while driving because it is overheating
one of your plug coils is bad. (possibly more,but if it's only just a 'sputter',1) You can have your mechanic replace it for about $100. Well worht the money for such a 'Grand' car. Or you can buy one and replace it yourself.
If your Grand Marquis cut off while driving, it could be due to several reasons, including fuel delivery issues, electrical problems, or a malfunctioning sensor. Common culprits include a clogged fuel filter, a failing fuel pump, or issues with the ignition system. Additionally, low battery voltage or a faulty alternator might cause the engine to stall. It's advisable to have a mechanic diagnose the problem to ensure proper repairs.
Air bag code 52 - intermittent or repaired lost battery feed
Then take it to a professional for repair of the SRS. This is not a repair job for a novice. Serious injury can occur when working with the SRS.
Find the leak, and fix it. theirs no leakge bra.
It sounds like it is your coolant temp sensor.
Its the bushings on your suspension, It will cost $200 dollars to replace at a shop.
Try "rocking" back and forth while turning ignition key
Lighting module under dash. It's the brain that controls headlight on/off/automatic. Circuits get weak and go haywire. Silver rectangular with a sticker on it that says lighting module
Brakes.