Noisy Fuel Pump

Does anyone use a fuel additive for 4.4. MY18 has a noisy fuel pump, it has been suggested that i try a fuel additive.

It has been in main dealers 3 times and had a new fuel pump, sometime its' loud sometimes it's quiet. Dealer says that all 4.4's are the same as the pump sits just behind passengers footwell.

When its on tick over or driving slow in traffic you can hear the pump buzzing away which is so annoying. Apart from noisy pump it drives and runs like a dream.

I'm wondering if anyone has had a similar issue and if you use an additive and what type and if it made any difference. ------------------------------------------
L405 4.4 V8 18 FFRR Autobiography (facelift) Santorini Black with Shadow Pack
L405 3.0 V6 13.5 FFRR Autobiography Santorini Black
L322 4.4 V8 12 FFRR Autobiography Santorini Black (RR Styling Pack)
L322 3.6 V8 10 FFRR Autobiography Santorini Black
L322 3.6 V8 07 FFRR Vogue SE Santorini Black
L322 3.0 I6 55 FFRR Autobiography Santorini Black

I can't say I've heared it on mine. If the main dealers are saying it's on all 4.4s, you could ask them to show it to you on their forecourt vehicles. Kev

2014 L405 RR Vogue SE 4.4 SDV8 in Corris Grey
2010 L320 RRS HSE 3.0 TDV6 in Stornoway Grey

Thanks. A friend has a 4.4 Sport and you can hear the fuel pump but you do haven't to listen for it. If mine was the same i could live with it.

The last time it was in MD they didn't have a 4.4 FF on the forecourt, several 3.0, It's not an issue with the 3.0. ------------------------------------------
L405 4.4 V8 18 FFRR Autobiography (facelift) Santorini Black with Shadow Pack
L405 3.0 V6 13.5 FFRR Autobiography Santorini Black
L322 4.4 V8 12 FFRR Autobiography Santorini Black (RR Styling Pack)
L322 3.6 V8 10 FFRR Autobiography Santorini Black
L322 3.6 V8 07 FFRR Vogue SE Santorini Black
L322 3.0 I6 55 FFRR Autobiography Santorini Black