Computer Reset fixed limp mode.. should it be ok? - Mercedes-Benz Forum

 
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post #1 of 4 (permalink) Old 10-29-2007, 08:37 PM Thread Starter
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Computer Reset fixed limp mode.. should it be ok?

My 99 ML 320 went into limp mode a couple weeks ago. If I am correct that limp mode= Reverse 2nd and 3rd ??

When I took it into the shop, the mechanic told me I should have the computer reset before doing anything else. After doing so (charged only for 1 hour labor) the car has run as normal. Is this something that I should worry about as indication of a big problem, or is this a normal thing? He told me that he used to have his reset regularly and that it would be fine for 6 months to a year.

Thank for the help.

Last edited by ml320driver; 10-29-2007 at 08:47 PM.
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post #2 of 4 (permalink) Old 10-30-2007, 12:11 AM
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He did not tell which fault codes existed? The first assumption should be that there is something wrong in the car that needs to be fixed, if nothing else, then a malfunction in the self diagnosis. Some random faults might be OK to be just cleared but even there it is an inconvenience, if it can happen again after 6 months, it can happen the day after too.

If you did not get the fault codes this time, next time ask those printed first and post them here for experts' comments.
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post #3 of 4 (permalink) Old 10-30-2007, 02:53 PM Thread Starter
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Thanks.

Fault code:

RPM/Speed Sensor #3 Faulty Y3/6n3
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post #4 of 4 (permalink) Old 10-30-2007, 07:23 PM
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Quote:
Originally Posted by ml320driver View Post
My 99 ML 320 went into limp mode a couple weeks ago. If I am correct that limp mode= Reverse 2nd and 3rd ??

When I took it into the shop, the mechanic told me I should have the computer reset before doing anything else. After doing so (charged only for 1 hour labor) the car has run as normal. Is this something that I should worry about as indication of a big problem, or is this a normal thing? He told me that he used to have his reset regularly and that it would be fine for 6 months to a year.

Thank for the help.
yeah thats the valve body speed sensor. there is def a problem and i'll bet ya that your contact plate is garbage. you shouldnt have to reset a modual once or twice a year anyways i would have someone check out that speed sensor with actual values. most of the time they read 8000 mph wich overiously is not right. its not to bad of a job to do yourself,let me know the outcome and i can pm you detailed instruction. good luck

mike

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