A160's cold engine starting problem

[vipe]

Hello,
I have following problem while starting A160/1999 (petrol, manual transmission):
1. Engine starts normally, idling in a condition.
2. About 1.5…2 seconds after starting idling goes low until about 400 rpm.
3. After that engine either stops or idle increases to its norm.
Described problem's precondition: first starting, true cold engine (car switched off/stopped more than 4-5 hours ago), outside temperature is more than about 15°C/59°F. In all other cases described problem is not exist, also in the case if car is restarted immediately.

Could anybody help? Thanks a lot in advance.

Note: MAFS was repaired one year ago. Car's ECU diagnostic test has no information/references about this failure.

[lofty]

Have you changed the fuel filter at the correct periods, dirty fuel filter can play havoc with slow running. will also burn out the pump.
Also please read my post re-MAFS repairs problems have come to light where one company has been modifying the unit which is now causing a number of problems including water damage.
Lofty also my page 38 which will give you full details .
http://www.aclassinfo.co.uk/mypage.38.htm

[vipe]

Thanks Lofty, but fuel filter only on own half way - was changed 2 years/ 20000 miles ago,
and MAFS repaired by ECU Testing.com.

[lofty]

Well that's two items you can discount and 'ecu testings' repairs are OK.