New front disks and brakes - KMs?

[Salt]

Hi everyone. I have a q...BMW replaced my 320d front disks and brakes last week. The computer now shows 34000km left - is this right. I am currently using a 118i and its computer shows like 80000km's left on its rear brakes. I don't know when the 118i had its brakes replaced but mine are brand new yet shows less km's? Can this be a case of the disks and brakes weren't really changed or does that sound right?

 

[KPM3_30]

Those sensors are a guideline based on usage, they only start getting more accurate as they wear.. Those figures sound about right for your car, just did brakes on the E90 320d.

Let's think about it:

A. The bias on brakes in sedan (and most 2WD car) applications are the front components, therefore the rear pads last longer than the fronts.. On average, you would change the fronts twice compared to once on the rear. You have to compare apples with apples, ie front indicator to front indicator.

B. 320d: 135kw and 400nm vs. 118i: 105kw and 190nm.

The fact that your 320d has double the torque and is quicker through all applications, than the 118i would indicate that you would need to decelerate more quickly in the 320d, this requires more braking.

I would take those indicators with a pinch of ahem, Salt, in any case.

 

[NtandoN]

You're comparing apples and oranges with fronts and rears on two different cars.

So the fronts would show less mileage because even though your car brakes with all the wheels it is front bias. I agree with KPM_330, your brake pad sensor is still new I don't think it's very accurate. It is more accurate as pads get worn. What is the mileage left on your cars rear pads?

I remember with my E90 that I replaced the front pads twice before the rears needed replacing.

 

[Salt]

Those sensors are a guideline based on usage, they only start getting more accurate as they wear.. Those figures sound about right for your car, just did brakes on the E90 320d.

Let's think about it:

A. The bias on brakes in sedan (and most 2WD car) applications are the front components, therefore the rear pads last longer than the fronts.. On average, you would change the fronts twice compared to once on the rear. You have to compare apples with apples, ie front indicator to front indicator.

B. 320d: 135kw and 400nm vs. 118i: 105kw and 190nm.

The fact that your 320d has double the torque and is quicker through all applications, than the 118i would indicate that you would need to decelerate more quickly in the 320d, this requires more braking.

I would take those indicators with a pinch of ahem, Salt, in any case.

You're comparing apples and oranges with fronts and rears on two different cars.

So the fronts would show less mileage because even though your car brakes with all the wheels it is front bias. I agree with KPM_330, your brake pad sensor is still new I don't think it's very accurate. It is more accurate as pads get worn. What is the mileage left on your cars rear pads?

I remember with my E90 that I replaced the front pads twice before the rears needed replacing.

Hehehehe...OK thanks guys - will let it settle and see. :thumbs:

 

[lucian]

What did the brake replacement cost? Just need a heads up for future maintenance.