Noisy, energetic beginning

[ChristousPapous]

Hello, my vehicle is a 64-plate cla with 54,000 km and 220 d
Bad recon injectors, white smoke, wet tailpipes, difficulty starting, and chilly are just a few of the issues I've had recently with injectors.

It sets the tone for a nice day.
A short, sharp gurgling sound has been emanating from the pump in the tank ever since I started working on it, but it quickly fades away.
After that, the car starts and drives perfectly every time.
There has been no more white smoke or leakage from the pipe since I changed the glow plugs, and the once-wet tail pipes are now completely dry.
I don't know what to do anymore.
AI has been useful, but I'm now too busy pursuing things.
Now that I've thought of it, a glowplug relay could work.
Alternatively, a little air gap on the side with low pressure.
Every bit of guidance would be much appreciated.

[LiamTheGreat]

There seems to be some wear and tear on the lift pump.

[ChristousPapous]

Would that lead to problems with cold starts? It works well after the first start and continues to do so day after day.

[Labusthetormentor]

Perhaps, like the exhausted pump, the water will return to the tank overnight.