Hesitant power??

[98Benzo]

My 98 c230 seems to be lagging when I punch it on the gas. I have noticed over the last couple of months that when I am cruising at about 70-80km/hr and I want to give it some juice to merge on the hwy etc I notice it is very hesitant on picking up speed. My mechanic says it could be many things such as needing to clean throttle body? change spark plugs/tune up? Transmission fluid change/service? My car has about 190km and I did a tune up when I inherited the car 4 years ago. Anybody have any ideas what it could be? I know it still has juice cus once I hit high rpm and the car down shifts it flies. Just wanna get mah powahhhh back lol

[HeyitzCedes]

I would say Spark Plugs, alot of hesitation problems comes from spark plugs. (Also heard Platinum plugs wont be compatible, and make sure to get one with no resister built in.)

[SD202]

sounds MAF related, Just had hesitations thought it was my trans. Replaced the MAF and it feels like a rocket ship again.

[vaspen]

same I did a compleat tune up new coils fpr maf but the maf is what did it for me try cleaning it with maf cleaner see if it makes a little difference