Down shift manually w211

I have e200 2007 no problem with auto change but when in D at speed manual change down would go straight to 1 ( not tried as result would be !!!) will shift up one at a time but not down any easy fixes thanks

I have e200 2007 no problem with auto change but when in D at speed manual change down would go straight to 1 ( not tried as result would be !!!) will shift up one at a time but not down any easy fixes
thanks

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