Should be an easy one to answer but I'm just not sure...

One of the front springs on my s3 broke this morning, I've been to GSF and bought another 2 to fit. I'm a bit concerned as to there compatibility? The bloke on the counter double checked the computer and confirmed they were compatible with the S3 yet the same part number on their website is listing as not compatible.

ive always thought the Quattro system would be totally different from anything else. The part number is 454VG1310 and has Beetle/Golf 1.8t on the box. Are the struts the same across the mk4 platform regardless of Quattro of not?

thanks in advance