Hello - new to the Volvo world. I am looking at purchasing a 2007 Volvo XC90 Sport with 90,000 Kms, and I noticed that it is noisy on startup. In fact, when it first started up, I thought it was a diesel! Almost like a knocking noise. After about a minute, all was quiet, and I never heard the noise again throughout the test drive.

Is this normal? Thanks in advance!