needing some parts for maggie
2 silencer and 1 n/s mirror electic and heated
renault prices silencer £325.45 + vat
mirror £213.85 + vat
shopped around, 
silencer £81 inc vat and delivery 
mirror £68 inc vat and collected
got some beer tokens left
Renault(or at least the dealership I use) will give a pretty hefty discount on parts if you ask for it. I needed a mirror last year, can’t remember what I paid for it but certainly under £100. I needed two new headlights for the MOT last year, list price was £320 each, got them for £320 the pair. Some parts are fairly horrendous, £200 for a shaped heater hose for example but generally parts seem cheaper than Volvo parts.
Shopping around for parts is a must but the dealer should still be on the call list, now and then the come in with best price just to catch you off guard. 
Try VEXI parts on line they are genuine RENAULT parts from a main dealer also do DAF and IVECO
not just Renault
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