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  #1  
Old 09-28-2018, 08:18 AM
Grubber Grubber is offline
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Location: Cornwall, England
 
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Mein Auto: 1999 Z3
Engine "Ticking"

I have a 1999 Z3 Roadster 1.9 11400 miles and the engine has recently started to "tick" when I start it on any occasion either hot or cold. I thought it could be a sticky tappet. When I accelerate it also increases along with the engine. At idle it's not too noticeable and when up to cruising with a constant throttle input there is no noise. It has been fine up to a few weeks ago when this annoying noise appeared.
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  #2  
Old 09-28-2018, 12:42 PM
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vintage42 vintage42 is offline
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Location: Louisville, KY
 
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Mein Auto: 1997 BMW Z3 1.9 5MT
Is that 11,400 or 114,000?
Here's a thread that found one cause of ticking, bolts missing in water pump pulley:
http://www.318ti.org/forum/showthread.php?t=29401
It could also be a loose spark plug, or a sticky hydraulic lifter especially if the oil was not changed enough in 114,000 miles.
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Old 09-28-2018, 06:07 PM
Blacklane Blacklane is offline
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Mein Auto: 1998 Z3 Roadster
Look for a loose spark plug. This seems to happen fairly often.

After that, start looking for harder problems.
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  #4  
Old 10-01-2018, 04:09 AM
Grubber Grubber is offline
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The mileage is 114,000 miles
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  #5  
Old 11-08-2018, 01:23 AM
Grubber Grubber is offline
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Many Thanks for the info. The infamous "Ticking" has now stopped on its own. Curious...
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  #6  
Old 11-08-2018, 04:36 AM
Moxysgym Moxysgym is offline
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How about change MAF sensor??

I had an pretty much same symptoms on my Z3, after changing MAF sensor, those kind of symptoms has been disappeared.
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  #7  
Old 11-08-2018, 09:16 AM
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vintage42 vintage42 is offline
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What made you change the MAF sensor?
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