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Old 05-24-2019, 05:12 AM
Glenpointe Glenpointe is offline
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Extended warranty on footwell module - 10yrs-150K

dropping of my 2011 E93 at the dealership to have the footwell module diagnosed. Service rep. informed me BMW has extended warranty on this module to 10 years and 150K. If you have the module replaced and paid for, you can submit claim for reimbursement.

I'm wondering did BMW make any design improvement on this module?
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Old 05-24-2019, 05:42 AM
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Originally Posted by Glenpointe View Post
... I'm wondering did BMW make any design improvement on this module?
Ours is in its third generation, FRM3.

ELW to 150,000 miles would be exceptional, more likely its 10Y/120K.

https://www.newtis.info/tisv2/a/en/e...s-side/1qXzYLi

https://www.newtis.info/tisv2/a/en/e...ghting/XZMcmML
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Last edited by Doug Huffman; 05-24-2019 at 05:45 AM.
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Old 05-24-2019, 06:12 AM
Glenpointe Glenpointe is offline
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"Ours is in its third generation, FRM3".
In third generation but still don't have a clue how to make the module robust. BMW selected Lear to supply this module...no wonder why they extended warranty to 10yrs and 150K miles. Lear is good at making seats and harnesses, but has not proven to be a good module supplier.
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Old 05-24-2019, 06:50 AM
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What do YOU think is the function of the FRM?

It is a set of electronic circuit breakers among other things, and when YOU think that it has packed up it has probably counted down to zero resets available on one or another circuits. If the resets available were infinite then no one would fix the root problem.

The FRM is robust to its intended purpose but fragile to ignorance.
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Scepticism and Animal Faith (1923)
Scepticism is the chastity of the intellect, and it is shameful to surrender it too soon or to the first comer: there is nobility in preserving it coolly and proudly through long youth, until at last, in the ripeness of instinct and discretion, it can be safely exchanged for fidelity and happiness.
(The Works of George Santayana p. 65)

Eschew eristical argumentation. I am responsible for what I write, not for your understanding of it.
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Old 05-24-2019, 08:40 AM
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The FRM is robust to its intended purpose but fragile to ignorance.
Even prior to the third iteration, that's highly debatable. Reset exhaustion manifests as a fault that does not correct itself. Intermittent recurring faults, traceable to and corrected by replacement of the FRM and no other components, point to the module itself as the root cause.

It's possible the revisions did not correct any flaws in the module circuitry per se other than to improve its I/O tolerances. Even if that were true, it's directly counter to the definition of "robust". A robust design would accept fluctuations expected from connected components that are all functioning within their respective design tolerances.

One hopes the third time is the charm.
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Old 05-24-2019, 09:02 AM
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Antifragile: Things That Gain From Disorder, a favorite book and author, N. N. Taleb

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Originally Posted by Zeichen311 View Post
Even if that were true, it's directly counter to the definition of "robust".
Taleb expands the bimodal notion of robust / fragile to include anti-fragile. Things can be robust only to anticipated stressors, and that may not include ignorance.

An aphorism from my career was, ‘Don’t give an idiot a ball-and-chain, he’ll break it, screw it up, or lose it.’

https://en.wikipedia.org/wiki/Antifragile

https://www.amazon.com/Antifragile-T.../dp/0812979680

I wonder how many strikes my FRM has taken.
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Scepticism and Animal Faith (1923)
Scepticism is the chastity of the intellect, and it is shameful to surrender it too soon or to the first comer: there is nobility in preserving it coolly and proudly through long youth, until at last, in the ripeness of instinct and discretion, it can be safely exchanged for fidelity and happiness.
(The Works of George Santayana p. 65)

Eschew eristical argumentation. I am responsible for what I write, not for your understanding of it.
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Old 05-24-2019, 12:35 PM
Glenpointe Glenpointe is offline
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"The FRM is robust to its intended purpose but fragile to ignorance".

After you replaced a dead battery and to find out the FRM fried is that ignorance on your part? You should direct that to the BMW engineers...
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Old 05-24-2019, 03:38 PM
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ELW to 150,000 miles would be exceptional, more likely its 10Y/120K.
It is 10 year and 156K miles, so more than 150K miles.

https://bimmerscan.com/wp-content/up.../B012016-1.pdf

What are the symptoms of FRM problems?
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Old 05-24-2019, 03:48 PM
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It is 10 year and 156K miles, so more than 150K miles.

https://bimmerscan.com/wp-content/up.../B012016-1.pdf

What are the symptoms of FRM problems?
156k miles! Thank you. Very interesting.

Symptoms, weird disparate systems all having problems coincidentally.
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Scepticism and Animal Faith (1923)
Scepticism is the chastity of the intellect, and it is shameful to surrender it too soon or to the first comer: there is nobility in preserving it coolly and proudly through long youth, until at last, in the ripeness of instinct and discretion, it can be safely exchanged for fidelity and happiness.
(The Works of George Santayana p. 65)

Eschew eristical argumentation. I am responsible for what I write, not for your understanding of it.
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Old 05-24-2019, 05:04 PM
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What are the symptoms of FRM problems?
Weird behavior of window and/or lighting systems, for the most part. Reported problems have included malfunction of any/all of the following:
  • Power windows, incl. Comfort Open/Convenience Close features
  • Door locks
  • Adaptive Headlights
  • Control of various exterior lights (headlights, reverse lights, Dynamic Brake Light/rear fogs, turn signals, etc.)
  • Interior lighting
And so on.
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