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Old 28th November 2011, 12:56   #16
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Default Re: The Thread To Clear Up All Your Warranty FAQs


Nice Thread.

A few points:

1) When one puts seatcovers on seats with side Airbags then the company is indeed justified in voiding the warranty for the Airbags as their deployment becomes unpredictable. Though one should quite confidently go ahead and do what one wants with seats without Airbags, and anyways most models with side airbags come with leather seats. The problem would be when one does not like the specific shade or quality of Leather.

2) Air Filters - it does become a matter of relationship with the Dealer SA. The Cars definately can handle filters with better airflow, but in theory one is supposed to get the car serviced only at the authorized centre so there is no question of replacing the Airfilter with any thing that is not standard. Yet logically a direct replacement filter should be manageable, and if case something does go wrong one can simply remove the replacement filter and put back the standard one (only if something goes wrong.) The thing is that the service history needs to show that the Air Filter provided by the company was indeed replaced at the prescribed intervals. This can go either way even without the seperate kit which is a bit no no.

3) Tuning boxes are safe as long as they are removed when sent for service. (Especially if something is wrong with engine related components.) Some boxes like those from Race Dynamics have a remote that lets one select the a setting that makes the car work as without a box. We just need to put the box in that mode before giving it for service and keep the box and wiring hidden from obvious view - it is possible (behind the battery). The safest thing to do of course is to remove the box. The trace cannot be detected from the ECU.

4) Tyres are again an issue that can go both ways. Actually those with normal suspension need not worry too much as the suspension anyways is quite robust and most things go wrong when they are actually out of warranty. (nope it is not 3/4 years but generally 30-50k kms for those parts.) The issue is where one has some advanced drive train stuff like AWD, 4X4, AT, ESP, TC etc, where technically the load on the system would be different due to the different kind of tyres/ rims that are used. The companies may trouble us a bit in those cases. But as Akshay says a +1 size upgrade would normally be quite safe.

5) Lastly for the Infotainment system - The case of replacement HU with standard wiring and no wires cut is quite safe. The issue is that some HU are great and integrate well with the steering mounted controls, reverse camera, sat nav etc and they just need an external AMP / better speakers or an added Sub to boost the sound thump or clarity. In most cases one does not get a standard bypass socket to fit the HU of high end cars. One needs a bypass socket to get the signal across to the amp. Also most technicians tend to take power for the amp from easier to access areas - cutting wires - rather than running a longer wire from the Battery. This is a problem area definately. Though if one takes the route of not cutting wires - possible in lower spec variant - definately one should be fine. (A similar problem will exist for Head Rest or roof mounted DVD screens - the audio to car system is though a FM signal and is quite safe, but the power if taken by cutting wires will void the warranty. The solution is to take power from the cigarette lighter socket.

6) Lights of same wattage are indeed safe, but anything that is higher wattage and cuts wires will be a problem. In theory even a seperate wire setup can be objected to but most will permit it. The Philips DRL system seems to be a safe add on as mentioned by Akshay.

Superb thread covers all bases.
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Old 4th February 2012, 20:04   #17
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Default Re: The Thread To Clear Up All Your Warranty FAQs

ACM spot on about all. Except the tuning boxes are not recommended for BMWs, not because they will cause harm but because it is detectable even after removing. That is on all cars, but on BMWs when they are sent in for service the diagnostic is connected to a central BMW server where all the values are uploaded. So if anyone does check it out there they will come to know.

Also this thread needed a little bump, still many warranty questions flying about on the forum.
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