Help!!! Explosion and smoke coming from intake grill!

[ChrisZang]

Originally Posted by Dgnarvs

Help!!!

Firstly, please bear with me as I'm only getting second hand details from my bro who's with he car.

Bro took the car to a Bosch service center to replace the battery. Shop said it's advisable to change to S5 DIN100 which has a 100Ah rating. After installing, the car was started and an explosion was heard and smoke came out of he passenger side (right side of the car) intake grill!

After a few minutes, the car restarted fine. The shop checked the engine and saw some rubber tubing detached or with loose clamps. (I suspect those are intake parts.)

Shop thinks its probably some gas residue since smoke is white.

I do hope it's just that and not anything worse. Any one have a similar experience? Any ideas of what actually caused the explosion/smoke?

Hey,

One detail which everyone seem to miss is that the right side "intake" is not an intake at all. So the idea of backfire doesn't hold water.

[Dgnarvs]

Originally Posted by ChrisZang

Hey,

One detail which everyone seem to miss is that the right side "intake" is not an intake at all. So the idea of backfire doesn't hold water.

I see. So what's the right side 'non-intake' grill connected to? Or it could have been just the closest outlet for the smoke that came out of the detached intake plenum boots?

[thom4782]

This is just a guess. IIRC, the vent on the passenger side is where excess engine compartment heat get ventilated. I assume the explosion blew the boots off the intake plenum. Perhaps the smoke was from the explosion itself which burned off some residual oil in the intake that got there from a failed or failing AOS. If so, then the smoke likely found its way out through the passenger vent.