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  #1  
Old 08-13-2019, 07:24 AM
PEIPETE PEIPETE is offline
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Under carriage/floor boards

Hi. my 2001 Z3 Roadster seems after 15 minute the under carriage/Floor boards are warm. Temp gauge is at the right temp. No muffler leaks . No over heating. Any thoughts ?
Thanks
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  #2  
Old 08-13-2019, 10:17 AM
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vintage42 vintage42 is offline
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Temp gauge stays in one place from 170F (end of cold) to over 220F (beginning of over heating). Engine could overheat with no effect on floor. Exhaust system does have some thin aluminum heat shields between it and the body. Are yours all there?
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Old 08-13-2019, 10:41 AM
[email protected] tgilbert@embarq is offline
terry2001z3
Location: columbia city IN
 
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I would look at where its getting hot.your cat converter can be getting plugged up . If its just normal heat from the motor or exhaust ,you can get aftermarket heat shields that you can put up there .https://www.amazon.com/s?k=heat+shie...l_4ygdqnjwu1_e
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Old 08-14-2019, 03:33 PM
PEIPETE PEIPETE is offline
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Thanks for the shout back Yes all still installed. Do you think it may be a exhaust leak ?
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Old 08-14-2019, 03:34 PM
PEIPETE PEIPETE is offline
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Thanks , I will look into it.
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  #6  
Old 08-14-2019, 07:02 PM
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vintage42 vintage42 is offline
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Quote:
Originally Posted by PEIPETE View Post
... after 15 minute the under carriage/Floor boards are warm...
Can you explain this in more detail? Like you sensed unusual warmth from the floor while driving, stopped and felt under your floor mat, and felt that the carpet was hot?
Quote:
Originally Posted by PEIPETE View Post
... Do you think it may be a exhaust leak ?
An exhaust leak big enough to make the floor pan hot might deafen your ears. Can you hear an exhaust leak?

Last edited by vintage42; 08-14-2019 at 07:07 PM.
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Old 08-15-2019, 07:54 AM
PEIPETE PEIPETE is offline
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No Exhaust Sounds

No sounds. Had a short run today ,not enough for the heat to build up , but I put it in the garage right away and noticed a odour. Thought the catalytic converter , but the performance is fine. No back firing , fuel consumption ok .
Thanks vintage42 for staying with my issue.
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  #8  
Old 08-15-2019, 08:15 AM
[email protected] tgilbert@embarq is offline
terry2001z3
Location: columbia city IN
 
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you need to narrow down where the floor is getting hot .
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  #9  
Old 08-15-2019, 01:27 PM
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vintage42 vintage42 is offline
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Quote:
Originally Posted by PEIPETE View Post
... put it in the garage right away and noticed a odour.....
Is this the car you got from Japan two years ago? And you are just now noticeing a new hot floor and a new smell?
Toasty hot metal is normal. Not sweet coolant. Or gas.
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Old 08-16-2019, 03:10 AM
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RogerEH RogerEH is offline
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I was noticing a burnt oil type smell on my Z3 after the car was running a while and got hot. Turned out to be a slow leak from the valve cover gasket that leaked onto the hot exhaust. I had our mechanic replace the gasket and now all is well with no hot odor anymore.
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