Majid Rana Posted December 19, 2016 Report Share Posted December 19, 2016 Im Having Mercedes S500 1998 W140 Engine 119 When i start my car after 7-8 hours engine starts fine no missing no stalling but when i put in gear and start acceleration as the RPM reaches 1500-2000 the engine starts missing and stalling and if i dont remove my feet from pedal the engine would DIE / OFF due to which i have to start it again and this missing/ stalling is only when RPM crosses 1500-2000 other wise in idle situation engine is smooth and after 15-20 minutes of driving in that slow RPM engine automatically get fine and it starts accelerating well.my car is in that situation since 5-6 months Link to comment Share on other sites More sharing options...
Ak Posted December 19, 2016 Report Share Posted December 19, 2016 Dear Majid , when was your last service done ? and what was actually done at that service? do you have a record of regular service details? with kind regards Link to comment Share on other sites More sharing options...
robert Posted December 19, 2016 Report Share Posted December 19, 2016 I suspect few things to doubt that you might not be using correct grade of engine oil as suggested by Mercedes. It's also worth double checking the spark plug specifications and you might not be using colder plug that take sometime to warm and become normal thereafter. Link to comment Share on other sites More sharing options...
Barry Posted December 19, 2016 Report Share Posted December 19, 2016 Have you scanned the car with STAR software? What was the results and codes logged? Link to comment Share on other sites More sharing options...
Majid Rana Posted December 20, 2016 Author Report Share Posted December 20, 2016 what kind of service are you asking for Mr.AK Mr.Robert im using regular spark plugs made by mercedes Mr.Barry i have not yet scanned car to see result of codes Link to comment Share on other sites More sharing options...
Ak Posted December 20, 2016 Report Share Posted December 20, 2016 I meant what was the regular service were fuel filter etc and plugs changed on time or not. These details might give a little clue about situation. I have a bluetooth scanner if you want we can check your codes as well. Kind regards Link to comment Share on other sites More sharing options...
Majid Rana Posted December 20, 2016 Author Report Share Posted December 20, 2016 yes i changed fuel filter , spark plugs , air filter, fuel pump in march 2016 and my car had made a run of 20000 - 25000 kilometer only Mr.AK where u live ? yes i would like to have scan for my car to diagnose this problem Link to comment Share on other sites More sharing options...
Majid Rana Posted December 20, 2016 Author Report Share Posted December 20, 2016 im using engine oil ZIC 10W40 Link to comment Share on other sites More sharing options...
Ak Posted December 20, 2016 Report Share Posted December 20, 2016 On 04/12/2016 at 3:56 PM, Rahimdad said: Congrats AK, nice friend, lucky you. Might just want to be friends with your friends, I want such gifts too. 1 minute ago, Majid Rana said: yes i changed fuel filter , spark plugs , air filter, fuel pump in march 2016 and my car had made a run of 20000 - 25000 kilometer only Mr.AK where u live ? yes i would like to have scan for my car to diagnose this problem I live in dubai al nahda 1 . If u r free tomorow evening we can check it. Regards Link to comment Share on other sites More sharing options...
Majid Rana Posted December 20, 2016 Author Report Share Posted December 20, 2016 51 minutes ago, Ak said: will it be free or what will be the charges for that???? 1 Link to comment Share on other sites More sharing options...
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