CHECK ENGINE ... old question repeated! - Mercedes-Benz Forum

 
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post #1 of 10 (permalink) Old 07-25-2004, 09:16 PM Thread Starter
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CHECK ENGINE ... old question repeated!

1999 SL500 with "check engine" light illuminated. Is this something I can fix at home or do I have to bring to the dealer? I have looked at the gas cap and it was fine.

I have posted this in R129 but hoping more tips out of this "general forum". Thanks much in advance folks.
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post #2 of 10 (permalink) Old 07-25-2004, 10:31 PM
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RE: CHECK ENGINE ... old question repeated!

Don’t know if this will help but when the light goes on in the older cars (1980s) it’s time to replace the O2 sensor…


[?]
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post #3 of 10 (permalink) Old 07-26-2004, 06:05 AM Thread Starter
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RE: CHECK ENGINE ... old question repeated!

thanks, if that's the case, I guess it's not the DIY job eh? [:(] do you know roughly how much to fix those things? Thanks.
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post #4 of 10 (permalink) Old 07-26-2004, 01:00 PM
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RE: CHECK ENGINE ... old question repeated!

if the mil light "engine warning light" is on then unfortunatly you need a code reader to scan the codes and to erase them which is the way to go, early models can be scanned easly but not the 1999 model
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post #5 of 10 (permalink) Old 07-26-2004, 01:09 PM Thread Starter
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RE: CHECK ENGINE ... old question repeated!

[:(][:(][:(]
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post #6 of 10 (permalink) Old 07-26-2004, 04:46 PM
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RE: CHECK ENGINE ... old question repeated!

Quote:
lnguyenh - 7/26/2004 8:05 AM

thanks, if that's the case, I guess it's not the DIY job eh? [:(] do you know roughly how much to fix those things? Thanks.

In a w126 or r107, yes – in your car, no idea; as teky said, you may also need a code reset.
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post #7 of 10 (permalink) Old 07-26-2004, 06:49 PM Thread Starter
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RE: CHECK ENGINE ... old question repeated!

thanks guys ... will keep diggin'
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post #8 of 10 (permalink) Old 04-12-2005, 02:36 PM
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RE: CHECK ENGINE ... old question repeated!

Get a CarChip. It plugs into your OBD port and captures all the essential data -- which can then be downloaded to your PC and used to reset your engine check light.
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post #9 of 10 (permalink) Old 04-12-2005, 06:58 PM
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RE: CHECK ENGINE ... old question repeated!

about 67 things can cause a ck engine light to come on a scan tool can be bought for about $200 ours is mercedes only costs $22,000 that is the price range scan tools dont tell you what the problems are just where the comp picked up a signal you can have an o2 code that is caused by aleaky fuel pressure regulator look for a good independant shop in your area if the shop is a member of LMVIND its a good shop its the least expensive way to fix your car
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post #10 of 10 (permalink) Old 04-13-2005, 08:02 AM
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RE: CHECK ENGINE ... old question repeated!

You've got to get the code read to find out what the problem is. Just throwing parts at it can get to be very expensive very fast. Go to Autozone - they will read the code for free and reset it.

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