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Old 05-02-2003, 04:25 PM
David Kyle
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Question 300 E Hesitation with A/C on

I've been browsing this forum and applying useful advice from it for 2 years running, but this is my first post. I must say that this is the best collection of MB technical advice I've come accross and I read the forum everyday.

Here's my problem:
My 1988 300E hesitates on acceleration from stop when the A/C is on. It doesn't do so with the A/C off. I recently changed the injectors, distributor, plug wires to resolve a rough idle problem but this did not solve the hesitation issue. It has 150,000 miles on it and drives like almost new except for this prob.

Anybody have any suggestions/solutions. Thanks in advance
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Old 05-03-2003, 02:17 AM
Registered User
Join Date: Jun 1999
Location: Surrey, Beautiful British Columbia, Canada
Posts: 750
acceleration will definetly be different with the
added a/c load.

Prayers bring forth enlightenment.
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Old 05-03-2003, 05:14 PM
David Kyle
Posts: n/a
I understand that acceleration will not be same as when AC is off, but this is from rest. It wasn't doing this until this spring when i tried the AC. When you hit the gas from a stopped position with AC on, the engine hesitates as if its going to die then after like a second it picks up and goes. I'm thinking maybe the idle is too low. It idles at approx 750rpm at rest with transmission in D.

Can anyone tell me what the idle rpms should be?

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