Noise Level

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Mario110

Mario110

Active Member
Posts
105
Location
Germany
Hi,

I own a TD5 110 and on long journeys (I'm driving the high way to get to the destination) the noise level drives me (sometimes) crazy :confused:.

How is the noise level comparable between the different engines TDI, TD5, TD4 2.4 and TD4 2.2?

Best Mario
 
Later models are quieter, those with tdci's. More to do with improved sound proofing and a six speed box than the type of engine.
 
Ear plugs all day long, get the soft ones, as the hard ones can make your ears ache.

Laser Lite are the make.

If you can borrow a decibel meter, you will scare yourself with just how noisy they are.
 
OK well l own a 2005 TD5 110 and on the motorway it’s fine, no need for earplugs

l’ve not done that much to it. Firstly it’s the Station Wagon which means carpeting throughout.
I fitted soundproofing to the bonnet and a few pieces stuck to some bare metal under the second row seats, and under the front cubby box/front seats.
Apart from that it’s standard County Station Wagon.
Best cruising speed is 65mph, after all it’s a Defender 110.
It’s worth spending time sorting out any rattles, bad door seals, unused holes in the bulkhead (put a rubber grommet in any you find), door rattles (for instance the window glass channel tends to rattle against the inside of the door skin, a cable tie round one end of the channel cures it completely) check the seals on the vent flaps etc

l have found that the XS version is a bit noisier at speed, the noise seems to come in through the aircon gubbins in the passenger footwell.
 
We can talk at normal levels at motorway speeds in our 110, so it is possible to make it acceptable on longer journeys.

And as l said, l’ve not done that much with it.
 
Mario110 said:
Hi,

I own a TD5 110 and on long journeys (I'm driving the high way to get to the destination) the noise level drives me (sometimes) crazy :confused:.

How is the noise level comparable between the different engines TDI, TD5, TD4 2.4 and TD4 2.2?

Best Mario
Click to expand...
Td5 is much better than older models. Bar maybe a good V8. But most Td5’s have more sound proofing. Puma models are a bit better. But tbh this is more down to the design of a Defender. They have poor NVH as the body is made up of lots of bits. And it is all bolted together, metal to metal onto the chassis.

A Discovery 1/2 or RRC is the answer. Very similar to a Defender under the body. But much better NVH.
 
A Discovery 1/2 or RRC is the answer. Very similar to a Defender under the body. But much better NVH.[/QUOTE]

True enough, but it’s not a Defender is it? That’s the thing, there’s something about Defenders (and previous versions) and nothing else will do.
 
I know...Disco/RRC similar and more comfortable....but it's not a Defender - don't know why I have this car but it is good to have one :rolleyes:

So the TD4 is a bit quiter, I've heard from a TD4 2.2 driver that he can talk on a normal level on highway and radio is also on "normal" volume setting, because the 2.2 has some noise reduction factory fitted - is this true?

The question is: Is it worth to change to a TD4 2.2 or not? From lightnings perspective it is possible to get the noise level under control...my cruise speed is at 110kph (68mph). From my perspective i won't change the car because I like the TD5, the vent flaps and I've touched a lot of parts and I know what I have....
 
The Ford engines have a common rail system ( the Ci in the TDCi) combined with electronically controlled injection helps reduce noise from those engines.
 
I think you will find that the noise levels in a Defender will depend on the quality of the sound-proofing rather than the specific engine fitted.
A 300tdi Discovery is a lot quieter than my 300tdi Defender, the mechanics are virtually identical but the Discovery has about an inch of soundproofing and carpet.
Either that or rotten floors and sills are really good at blocking noise.
 
lightning said:
True enough, but it’s not a Defender is it? That’s the thing, there’s something about Defenders (and previous versions) and nothing else will do.
Click to expand...
But why? Unless you need the utility of a Defender or the modular design of the body, the other vehicles are much better bets.
 
Rougharse Racing said:
I think you will find that the noise levels in a Defender will depend on the quality of the sound-proofing rather than the specific engine fitted.
A 300tdi Discovery is a lot quieter than my 300tdi Defender, the mechanics are virtually identical but the Discovery has about an inch of soundproofing and carpet.
Either that or rotten floors and sills are really good at blocking noise.
Click to expand...
The differences are much greater than sound proofing. The biggest difference is the Discovery uses a 1 piece body shell, that mounts on rubber isolating donuts to the chassis. The Defender mounts metal to metal on the chassis and the body is made up of many parts. There are however many other NVH enhancements on a Discovery above and beyond this.
 
Mario110 said:
I know...Disco/RRC similar and more comfortable....but it's not a Defender - don't know why I have this car but it is good to have one :rolleyes:

So the TD4 is a bit quiter, I've heard from a TD4 2.2 driver that he can talk on a normal level on highway and radio is also on "normal" volume setting, because the 2.2 has some noise reduction factory fitted - is this true?

The question is: Is it worth to change to a TD4 2.2 or not? From lightnings perspective it is possible to get the noise level under control...my cruise speed is at 110kph (68mph). From my perspective i won't change the car because I like the TD5, the vent flaps and I've touched a lot of parts and I know what I have....
Click to expand...
The TD4 is a BMW engine found in the Freelander ;)

The 2.4 and 2.2 Puma TDci engines in the Puma Defenders are from Ford. These engines are slightly more refined. But it is the entire package. The latter dash and more plush trim all help reduce noise. A CSW or pickup are going to be quieter than a hard top.

In general, each generation/refinement of the Defender has produce a slightly more refined and quieter version than the out going variant. Exceptions to this would probably be the NAS V8 models, the 50th Anni V8 model and the S. African 2.8
 
Get some dense foam sound proofing and apply bits of it to various panals, especially under the bonnet. The sort I got was self adhesive and it has stuck in place for at least 3 years so far. Any other panals such as the gearbox tunnel and seat box are also worth doing. My old series 3 was a nightmare, you literally had to shout to passengers and a radio was out of the question but now I can have a more or less normal conversation with a passenger and have a radio on albeit a bit louder than normal, I have to turn it down when I pull up at traffic lights etc.

Col
 
300bhp/ton said:
The differences are much greater than sound proofing. The biggest difference is the Discovery uses a 1 piece body shell, that mounts on rubber isolating donuts to the chassis. The Defender mounts metal to metal on the chassis and the body is made up of many parts. There are however many other NVH enhancements on a Discovery above and beyond this.
Click to expand...
I'm not convinced, early 4-speed Range Rovers were pretty bloody noisy.
 
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