I just had the thermostat replaced along with the power steering hoses. A week later driving 120 miles round trip I noticed some vibration from the left side upon acceleration. The car did not pull to one side or another, the tires aren't low. Anywhere from 60-85mph I'll get that vibration even on cruise control going up a hill.
slight to moderate vibration upon acceleration at highway speeds on 2001 BMW 325xi
by racine in Summit, MS on December 09, 2010
ANSWER by flyeffect , December 19, 2012
Check the Center support bearing on the driveshaft. The rubber housing deteriorates afer time and causes the drive shaft to be unbalanced and may cause the feeling you are describing.
ANSWER by Visitor , January 11, 2011
Also try the bushings on the front control arms.
ANSWER by Chow , December 14, 2010
Placebo. Thermostat and p/s hoses are not linked to the symptoms described Schedule for a rotate and balance of the weeks.