Beetle Bucking under acceleration

I'm new to the New Beetle world and not sure what is normal on these cars yet. I have a 1998 beetle, only 106,000 kms, with 2.0 engine and standard transmission. With the revs under 2000 rpm, I have to keep a light foot on the throttle or it bucks, or hesitates. It seems to happen when warm or cold, but perhaps a little more when cold. Happens in any gear. Once the revs are over 3000 it can take any amount of throttle with no problem and has good acceleration. I work at a mechanic's shop, but have no experience with any VWs.

I would look at the air boots, if the boots are ok, look at your maf.

the maf sensors are a common problem on vw's

I would first look for check engine codes, then check for vacuum leaks make sure spark plugs and air filter are clean, then clean the iac and maf, replace fuel filter

I am in no way mechanically-inclined, but my 2000 Beetle (1.8L Turbo) was just doing the exact same thing that you are describing. I took it in and they said that cylinder #1 was misfiring. They replaced a coil pack and a couple of sparkplugs for just under $100 and now it runs just fine.

My daughters did the same thing. We changed the MAF and coil pac, wires and plugs. Problem went away and car runs great.