The differential ratio of the W124 E320 may be either 2.65 or 3.06.

Amarok

Greetings, all individuals,

Wishing everyone a pleasant day. I own a 1995 non-ASD US edition of the E320 W124 model. I had a differential noise in my vehicle and I received a recommendation to replace it rather than attempting to fix it.

Based on the parts manual, my model is the 2.65 ABS variant. The car I discovered is a Japanese version with a 3.06 ABS system.

The questions that are now causing significant concern include

Would swapping them have an impact on the car's performance?
Is the speedometer reading accurate or not?
Is there a difference in the disparity between the e280 and e320, both without the ASD edition?
What do these numbers for the difference signify?
If we come across identical figures with a value of 2.65, but one is the ASD edition while the other is damaged and non-ASD, can we replace the damaged one with the ASD edition and expect it to function properly?

Any information would greatly impact me since I lack knowledge on differential issues.

Yours truly

steven

What is your desire?
Generally, fuel economy: Urban driving conditions may see a marginal improvement. The freeway will suffer significant damage.
When starting from a complete stop, it accelerates more quickly (especially if you tend to press the accelerator forcefully).
Alters the accuracy of your speedometer based on your driving speed.

christian

I find it very unlikely that the differential is causing the noise, unless the automobile has made an extensive journey to Mars and returned.

They seldom fail, provided that it has sufficient oil. Are you certain that it is not a wheel or propshaft bearing?

Amarok

My friends, the tickets for this event are rather expensive, therefore I cannot take the chance of having an inaccurate speedometer. Additionally, I will double-check the differential, taking into account the fact that they are not prone to failure. Thank you everyone for your contributions. However, no one has provided a solution to my previous inquiry about the meaning of these figures. I kindly want clarification in order to comprehend their significance.

christian

As said, there is no need for a new differential.

Unless your automobile is the rare exception among two million vehicles whose differential has failed.

XseC0

The failure rate of the differentials is quite low.

Ensure that the specific differential is really the cause of the problem.

All of your inquiries may be resolved using the search engine Google. The differential ratio, either 2.65 or 3.07, represents the number of rotations the ring gear will complete in relation to the pinion gear. Using a lower gear ratio (such as 3.07 in this case) can result in a little improvement in your car's acceleration. However, it will also cause the engine to rev higher in the highest gear, leading to increased fuel consumption.
Using a higher gear with a lower numerical value (such as 2.65 in this instance) may result in somewhat slower acceleration, but it will also cause the engine to rotate at a lower speed while in the highest gear. This generally leads to improved fuel economy when driving in the highest gear.

Amarok

I would like to express my gratitude for providing me with the answers. They were quite informative and helped me much. After careful investigation, I have determined that the source of the noise is indeed the differential unit, and not any other component. When I purchased the automobile four years ago, there was a complete absence of oil in the differential. I promptly replaced the oil, however, I did not anticipate that it would deteriorate so quickly.
I will search for the same number, as it will ensure optimal performance of the vehicle on unrestricted roads. Additionally, I anticipate that the two numbers will not provide identical readings in terms of actual car speed. Therefore, I will go for the OEM number as a safer alternative.

kirksey

Do you provide a 4 or 5-speed automatic transmission?

Amarok

Hello, I have a 4-speed automatic transmission.

kirksey

I believe that the 3.06 refers to a gear ratio found in a 5-speed transmission, namely in the overdrive top gear.
Your automobile would have a faster acceleration but would have more RPMs at a constant speed with a 3.06 gear ratio.
Sat nav will tell you your true road speed.
The speedometers produced by manufacturers often display a reading that is 7% higher than the actual speed. However, if you modify the differential ratio of your vehicle, it is difficult to determine the accuracy of the speedometer until you compare it with the speedometer of another automobile.

However, I agree with many who have said that they seldom experience failure.

patricia

The 5-speed automatic transmission has a gear ratio of 3.69.

Flavour1

The rear differential of my 300E, equipped with a 3L M103 engine, had a failure. And with a low mileage of just 300,000 kilometers. The engine did not technically fail, but it produced a loud buzzing noise that intensified even after I replaced the oil. It was substituted with in front of me, so no further actions were taken without my knowledge. The vehicle has been running well since it has accumulated 380,000 kilometers, and the oil has been consistently replaced at a maximum interval of 80,000 kilometers.

As far as I know, if there is a loud humming noise that occurs during acceleration, regardless of the speed, it is likely due to a problem with the rear differential. In all likelihood, the rear differential will need to be replaced.

The value is 3.06 ASD. I assume that from 1987, the norm for this vehicle was to replace the 3.27 non ASD with a different one. I suppose this change remained in effect until 1992 on the 2.6L 300E. Uncertain about whether it is ASD or not. I have deactivated the ASD system, leaving it in a passive state.

A greater numerical value for the ratio corresponds to a smaller gap between gears, resulting in increased acceleration but reduced top speed (along by higher RPM) assuming both the gearbox and engine has sufficient power to achieve the limit. Additionally, it has worse fuel efficiency.

Wishing you well in resolving the issue. The incessant buzzing drove me to madness in the past.