I had just gotten this BMW 325CI as a project car and there was something wrong with the blinkers not working correctly. I pulled it from the housing and noticed that the fluid was only about 1/6th full.
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While this is a popular car prank and something funny to laugh about, the blinker was full of water. In the end, I drained it out and sealed the housing around the edges and have not had the problem again since.

"Blinker fluid" is a humorous term used in jest, often as a prank or joke to tease someone about a nonexistent or trivial automotive maintenance task. Here are some playful and fictional keywords related to "blinker fluid":

Blinker fluid refill
Blinker fluid replacement
How to check blinker fluid
Blinker fluid reservoir
DIY blinker fluid topup
Blinker fluid maintenance
Blinker fluid capacity
Best blinker fluid brands
Blinker fluid color options
Blinker fluid leak repair
Blinker fluid level sensor
Blinker fluid change intervals
Signs of low blinker fluid
Blinker fluid pump
Synthetic vs. conventional blinker fluid
Blinker fluid for LED lights
Blinker fluid temperature range
Blinker fluid viscosity
Blinker fluid additives
Where to buy blinker fluid

Remember, there is no such thing as blinker fluid in real automobiles; it's a humorous term used to playfully tease or prank someone unfamiliar with car maintenance.


Here is a video on BMW E46 tail light swap    • 325ci tail light replace in e46  sam...  

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