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Any idea what is the normal Timing advance for 2005 C230 M271?

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Old 05-16-2015, 12:55 PM
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2005 c230
Any idea what is the normal Timing advance for 2005 C230 M271?
My car runs a bit rough when i start it and there is barely noticeable hesitation when I start accelerate at low speed.
I used an obd scanner to get the timing advance readings at idle and it was varying between +4.5 to +8.
is that normal?
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Old 05-20-2015, 04:42 PM
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2005 C230K SS
checked a while ago, between 8 and 12 at idle with engine at operating temp. Never went below 8.
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Old 05-29-2015, 07:46 AM
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Thank you, any idea if that would be Timing chain issue or cam shaft sensor issue, I have no check engine codes.
Thank you again.
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Old 05-29-2015, 12:34 PM
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I would pull the valve cover and check...chain should be taut across the upper guide. Also check the sprocket teeth. Type "my chain pics" in the search box and dig up my post with pics of what it should look like. My chain was barely stretched at 120k miles, replaced it anyway.
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Old 05-29-2015, 02:19 PM
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Thank you for the help, much appreciated.
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Old 03-22-2023, 11:27 AM
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Originally Posted by RWDlifer
checked a while ago, between 8 and 12 at idle with engine at operating temp. Never went below 8.
For me with a new chain it is -17 ? Any ideas?
Last edited by autospeed_bg; 04-27-2023 at 03:13 AM.
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Old 03-23-2023, 01:24 AM
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C230K M271 CL203 2003 model

This is what i get during a normal drive.. 20 year old chain, may have a bit of slop??...
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Old 03-23-2023, 04:32 AM
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@ tkid , when working on site, warmed up car. After chain change TA is -17. Before it was -12.
Last edited by autospeed_bg; 04-27-2023 at 03:13 AM.
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