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Home > Technical (L322) > howling / frequency noise at motorway speed

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Jimnic007

Member Since: 13 Aug 2019
Location: Cheshire
Posts: 76

2011 Range Rover Autobiography 5.0 SC V8 Baltic Blue

howling / frequency noise at motorway speed

I was on the motorway a couple of days ago in my 2012 4.4 TDV8 and it was a very hot day. Having done around 80miles at motorway speed, the car starting making a reasonably loud howling noise from what sounded like the lower, frontal area. It stopped when dropping below (say) 50mph, but above that it started up again. It wasn't present all the time, but for long periods it was.

I looked underneath on arrival and couldn't see anything flapping around and it didn't do it on the return journey today, in cooler temperatures.

The car has been fully serviced within the last 3,000miles, including a gearbox service/flush.

Does anyone have any idea what could have caused this, or was it just a strange frequency/wind noise?

Thanks,
James

14th Aug 2025 4:50pm

JayGee

Member Since: 27 Jul 2021
Location: London
Posts: 3300

2012 Range Rover Vogue 4.4 V8 Orkney Grey

Rad fan cutting in to aid cooling during a DPF regen? 2012 TDV8 Vogue (L322)

14th Aug 2025 6:50pm

Jimnic007

Member Since: 13 Aug 2019
Location: Cheshire
Posts: 76

Could be, it certainly felt like something was whirring away at a high speed. Is that normal and anything to worry about?

14th Aug 2025 6:53pm

JayGee

Member Since: 27 Jul 2021
Location: London
Posts: 3300

Not normal as there should be plenty of airflow at M-Way speeds through the radiator without needing fan assistance. Maybe worth investigating further. 2012 TDV8 Vogue (L322)

14th Aug 2025 7:05pm

CS

Member Since: 14 Apr 2015
Location: Edinburgh
Posts: 1422

2017 Range Rover Autobiography 5.0 SC V8 Corris Grey

A similar noise on my L405 was diagnosed as a wheel bearing in need of replacement. Only Range Rovers since 1988

14th Aug 2025 8:59pm

steve k

Member Since: 05 Apr 2024
Location: Berkshire
Posts: 50

JayGee wrote:
Rad fan cutting in to aid cooling during a DPF regen?

It's a 5.0 petrol? so if I'm correct there is no regen on petrol cars?

Sounds like viscous fan is getting tired. At higher RPM if its starting to get 'tired' it may be unable to keep slipping. However, if you are using the A/C first check that the electric cooling fan at the front is working Current: 2003 TD6 HSE
2004 Vogue SE 4.4
Previous: 1993 Classic 3.9

14th Aug 2025 9:54pm

Rambles

Member Since: 16 Apr 2011
Location: UK
Posts: 845

2011 Range Rover Vogue SE TDV8 Stornoway Grey

Some folk find a droning noise comes from an aged scuttleboard

If temp related, have you tried whether turning AC off makes a difference?
Whether you select cold or normal air through the face level vents ?

14th Aug 2025 9:58pm

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