e60 530d jerks like I am going on several speed bumps
 

so I bought a e60 530d 62000km run and it is very smooth to drive but when I floor it gives me continuous jerks like I am going through 8-10 speed bumps. if any one knows this problem and solution please tell me where is the fault?

I would check the condition of the rear dampers. This may be the traction control activating but if the wheels are jumping off the road it will feel pretty bad.

Also did a mechanic go over the car? Roads in India bad? Get all the suspension looked at and check the driveshaft coupling and engine mounts - anyplace there Is rubber.

it was a good road it happened over the speed of 130km/hr when I flooded it and to reassure I floored it again and after downshifting it was normal.
can it happen because of battery or oil leak?

What are your tyres like and what was the road surface. Maybe its the traction control coming on and off.

Is this an automatic? You mention "after downshifting" - automatic downshift? If so, problem could be there. If not, then I would look at a fuel delivery problem.

My last BMW was a manual, current I same as yours (530D Auto) and I get a bump or two every so often when taking off from start with a bit of power.

I wonder if this is a failing Guibo symptom in the autos.

Anybody know?

Also check the center support bearing for the propshaft.

Update
 

should I do automatic transmission reset? As is is a used car and maybe the previous owner did not dive it often so that may save it