BMW 3 Series B48 Do it yourself to replace the spark plug
ElliotMatilda 
5 The conservative point of the B48 spark plug is to change the oil twice, which is 240,000 yuan per change. It has already run more than 50,000 yuan. You can change it and learn about 1200 yuan for the 4s continuous working material. I change it more than 500 yuan, including 200 yuan. Tools.
Without saying much, get started.
Four-pack, bought from the milk tea house NGK flagship store, 349.
Remove the 2 plastic covers first
Universal 14m ultra-thin spark plug sleeve, 75mm adapter rod, 55mm universal joint, torque wrench (joint is 3/8 Zhongfei)
I took out the burner plug and found that there were fine debris inside, which could only be sucked out with a vacuum cleaner. I found a tube (you can also use a straw for drinking milk tea) and glued it to the vacuum cleaner connector with a transparent glue.
I disassembled one after another and installed the torque wrench to 23.
Stuff the sponge in
The innermost one was the most troublesome. I removed the plastic parts on both sides and the two screws on both sides of the balance bar. I found that there were still two screws on the middle wiper, but I didn’t want to remove them, so I squeezed the sponge on the lining. Inside, based on my experience in removing the connector of the line card in the front, I used something to hold the white clip with one hand and a screwdriver to hold the connector with the other, and I came out just like that. In other words, those things don’t have to be disassembled!
After replacing it, check all the screws, reset the removed ones, and once the car is lit up, you’re done!
Finally, I would like to thank the Home platform and all the big guys in the jar who spoke freely!
Before and after EBC, the redskins are on the road, and the next step will be trouble!
call it a
April 1, 2024
March 27, 2024 
March 27, 2024 
