Smelly tdi
AudiWorld Super User
Joined: Jan 2021
Posts: 4,566
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From: USA - NM
Sorry, but you'll need to be more specific; does it smell like raw diesel exhaust or unburnt diesel fuel, or something else? Describe what you smell in relationship to the car.
If you smelling something truly funky, like dead animal/skunk spray, etc., then there's your answer.
If you referring specifically to the car's interior, then say so, etc. Be specific.
If you smelling something truly funky, like dead animal/skunk spray, etc., then there's your answer.
If you referring specifically to the car's interior, then say so, etc. Be specific.
Thread Starter
AudiWorld Junior Member
Joined: Apr 2025
Posts: 22
Likes: 6
From: Alaska/Florida
does not smell like diesel anything, ( i own 4 diesel engines) I also have been a aircraft/ auto upholster for 50 yrs so am in tune with interior smells, does pink antifreeze smell different than normal stuff?
AudiWorld Super User
Joined: Jan 2021
Posts: 4,566
Likes: 1,456
From: USA - NM
No, the coolant smells like normal coolant, and you still have not defined the issue any further beyond it not being a fuel type smell/odor and you are familiar with dank car/aircraft interiors.
The two fluids that have a really strong odor are the hydraulic fluid/steering rack and the DEF, which is not very pleasant being ammonia based urea solution. Suggest you remove the cap on hydraulic fluid/power steering pump reservoir and get a good whiff to compare by. If that hydraulic fluid gets spilled or leaks on anything it stinks up the place pretty solid for a while. It stinks immensely straight out of the sealed bottle too...I changed out my dark steering fluid for fresh, but if anything it stank worse with the fresh hydraulic fluid, yup.
Still, when you use the words dead, rotten, stinky...that brings to my mind a dead rodent up in your cowling area beneath the windshield.
Good luck tracing the stink. Our TDIs have aborted regens due to short drives ending at the driveway, and the coolant fans running furiously after shutdown was the giveaway the regen cycle was running, but they never stank.
The two fluids that have a really strong odor are the hydraulic fluid/steering rack and the DEF, which is not very pleasant being ammonia based urea solution. Suggest you remove the cap on hydraulic fluid/power steering pump reservoir and get a good whiff to compare by. If that hydraulic fluid gets spilled or leaks on anything it stinks up the place pretty solid for a while. It stinks immensely straight out of the sealed bottle too...I changed out my dark steering fluid for fresh, but if anything it stank worse with the fresh hydraulic fluid, yup.
Still, when you use the words dead, rotten, stinky...that brings to my mind a dead rodent up in your cowling area beneath the windshield.
Good luck tracing the stink. Our TDIs have aborted regens due to short drives ending at the driveway, and the coolant fans running furiously after shutdown was the giveaway the regen cycle was running, but they never stank.
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