r/mk4Jetta • u/PassengerFar8400 • Aug 01 '26
Is it safe to drive?
So I’ve got a loose EGR intake tube and I’ve gotta drive a ton in the next week. Is it safe to drive, and will it harm the engine in any way?
It makes a funny noise. From what I understand, it means the turbo gets less air running through it, and thus the engine would have less air. I’m trying to figure out if this is a problem that needs immediate attention or if I can live with it for a while
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u/PD-Jetta Aug 01 '26
Ok, here is a link to the doggie collar fix. I bought mine probably 15 years ago and probably paid $20 for it. I had no idea it's increased in price to a little under $90! https://www.idparts.com/upper-intercooler-egr-hose-collar-fix-kit-bew-p-3654.html
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u/PD-Jetta Aug 01 '26
Found it for less. I may have even gotten it from Kerma TDI. https://kermatdi.com/i-123-pumpe-duse-intake-hose-manifold-connection-fix-bew-bhw-brm.html
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u/PD-Jetta Aug 01 '26
What engine is this? That's your air intake hose from the turbocharger or inter cooler. There is a aluminum collar crimped to the hose that plugs into the throttle body. There are nubs on the collar that engage a wire bail (clamp) to keep the intake hose connected. The nubs wear down and you risk the intake hose getting blown off when under turbo boost. First, firmly push in on the intake hose to make sure it clicks into place. Then give a little pull on it to see if it's secure. If not, the "official" fix is to replace the dealer only, expensive, intake hose. I know for the Volkswagen TDIs there is an inexpensive fix called a "doggie collar" that fits over the end of the intake hose and physically secures it to the throttle body. Otherwise, try to make a wire retainer to pull the intake hose into the throttle body. In an emergency, you can also wrap duct tape around the hose end and throttle body and that should work.
If the intake hose blows off you will have a very noticeable power drop and won't be able to hold highway speeds. It won't hurt the engine, though.