I have a question about VW Passat 2007 SEL Diesel and Tyre Pressures.

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For the first time since I bought the car (from new) I have to topup/inflate the front tyres. The tyres I always use are Goodyear 215/55/R16 97W EL. I looked in the manuals and there is little or no info on this but in the Fuel cap there is a label which shows 2.6 Bar (equiv 37.7 PSI). That said I have read elsewhere the pressure should be 32 PSI (equiv 2.2 Bar). Does anyone know which correct for these tyres? Is 37.7 correct?