99 S320 with 85,000 miles. Check engine light is on, it shows Fuel Trim Malfunction, Bank One. i can reset the light problem but it comes back every few days,. How do I correct that issue?

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Asked by shirleyunger Oct 17, 2015 at 07:00 PM about the 1999 Mercedes-Benz S-Class

Question type: Maintenance & Repair

99 S320 with 85,000 miles. Check engine light is on, it shows Fuel Trim
Malfunction, Bank One. i can reset the light problem but it comes back
every few days,. How do I correct that issue?

223,915

Rowefast answered 9 years ago

Have the codes checked, replace what is necessary.

1 people found this helpful.

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GuruZ72MK answered 6 years ago

can 22"s rims fit on a 99 s320?

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20

Anonymous98 answered 3 years ago

Have the O2 sensors, or the connections to them, checked out. The signals from them govern fuel trim.

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