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Mercedes Benz
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1990
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300SL (129.061) L6-3.0L (104.981)
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Repair and Diagnosis
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Transmission and Drivetrain
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Automatic Transmission/Transaxle
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Testing and Inspection
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Complaints, Causes and Remedies
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Upshifts
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Complaint
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Engine Speed Fall Too Slowly or Not at All on 1-2-3 Upshift
Engine Speed Fall Too Slowly or Not at All on 1-2-3 Upshift
CAUSE/REMEDY:
1.
Vacuum line to vacuum modulator on transmission badly routed or kinked. Re-route vacuum line without kinks.