Another one of the issues I noticed with my car that was on the to do list, was the Oil breather hose.
This was another separate job that was required. Whilst it was not a major job a faulty oil breather hose not only dirties the engine bay on the car, but it can throw a fault code eventually and have an effect on emissions for the vehicle.
What parts do you need to replace the breather hose?
What tools are needed to replace the oil breather hose?
How do you replace the Audi A3 oil breather hose?
This is a nice simple procedure, to help build up confidence even for the most amateur mechanic or someone wanting to get their hands into working on their car.
First, pop the engine bay and then remove the engine cover on the car. Pull upwards at the rear right, oil dipstick pipe and slide forwards from the position at the rear left (near the audi badge)
This will then expose the engine where you can see the oil breather pipe, this is the pipe just above the oil cap
You can see here that my oil breather pipe was broken, hence why I had lots of stains over my engine cover
Using a pair of slip joint pliers, squeeze the ends of the spring clamp together and wiggle it forward off the plastic pipe. It’s easier to remove using a back and forth motion to wiggle it off
You can then disconnect the pipe at the other engine from the Turbocharger intake pipe, by squeezing the notches on the pipe and pulling it out. There’s nothing holding this in other than an O-ring. After this you can safely remove the old hose
After I removed my pipe, it broke completely. You can see how bad it had deteriorated.
The one thing you will need for your replacement hose. I purchased a Febi 45319 from Amazon for the repair. Is the spring clamp, as the new one doesn’t have one. Use your spring clamp pliers again and squeeze the ends a bit more, then slowly slide over the end of the pipe to retain it
It’s then just a case of refitting the spring clamp over your new pipe, and inserting back into the original position. Use the slip joint pliers to help position the clamp as you push it on. It’s easier to put the clamp over the loose part of the pipe first, then push on the connectors and attach the clamp when finished
My hose was replaced at 162,766 miles on the Audi A3 so they last quite a well.
I also recently replaced the struts on my Boot Lid as they decided to fail at the same time, maybe this is an article you’d like to read aswell
