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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 05-21-2013, 08:32 AM
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King 5 King 5 is offline
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Mein Auto: 1997 BMW 528i
335i- looking

Hey guys, I'm a frequent member on the e39 boards ('97 528i) and I have finally convinced my mom to trade in her 05 Maxima for a BMW, more specifically a 2008 335i sedan. My question is, are these cars DIYable, to an extent? (I know this chassis is much more technologically advanced than my e39) I do all the work on my e39 with my father as he is a mechanic and was wondering if we could do a majority of the work/maintenance on the 335i if need be.

PS: the 335i has 54k miles and is a CPO with 2 years or up to 100k miles left on the warranty I believe

Thanks for the advice!
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Last edited by King 5; 05-21-2013 at 08:34 AM.
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  #2  
Old 05-21-2013, 08:56 AM
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lqaddict lqaddict is online now
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Quote:
Originally Posted by King 5 View Post
Hey guys, I'm a frequent member on the e39 boards ('97 528i) and I have finally convinced my mom to trade in her 05 Maxima for a BMW, more specifically a 2008 335i sedan. My question is, are these cars DIYable, to an extent? (I know this chassis is much more technologically advanced than my e39) I do all the work on my e39 with my father as he is a mechanic and was wondering if we could do a majority of the work/maintenance on the 335i if need be.

PS: the 335i has 54k miles and is a CPO with 2 years or up to 100k miles left on the warranty I believe

Thanks for the advice!
Most of the maintenance can be done by DIY.
I'd suggest these boards for more in depths DIY guides.
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Last edited by lqaddict; 05-21-2013 at 08:58 AM.
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Old 05-21-2013, 09:55 AM
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floydarogers floydarogers is offline
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Mein Auto: 335d, 328d, Toyota T100
Most common maintenance tasks are easy DIY. You might consider getting an OBD II code reader (that can read BMW specific codes) if you want to go a bit further. Even changing batteries you need a reader/reset.
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Old 05-21-2013, 10:33 AM
ramblinman ramblinman is offline
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Convince your mama to get a 328. The 335 is great when it's under warranty. Not so great when it breaks out of warranty. The 335 has a lot of problems which will require major expensive repairs before 100k miles. They will almost certainly include:

A/T mechatronic sleeve replacement (you need to drop the pan to replace the sleeve and then go through BMW's ridiculous A/T fluid filling procedure from under the car with the engine running)
Oil filter housing gasket replacement
Decarbonizing the intake ports and valves (requires removing the intake manifold and is a recurring maintenance item)
electric water pump and thermostat

This is all DIY stuff for anyone with a Bentley manual and the time to spend a few weekends worth of work.

BMW extended the warranty on the turbo waste gates for a rattle up to 8 years and I think 82k miles. But whether you can get new ones or not, turbos (there are 2 on the 2008) are a wear item. They will need to be replaced if you keep the car long enough.
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Old 05-21-2013, 11:17 AM
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lqaddict lqaddict is online now
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Quote:
Originally Posted by ramblinman View Post
Convince your mama to get a 328. The 335 is great when it's under warranty. Not so great when it breaks out of warranty. The 335 has a lot of problems which will require major expensive repairs before 100k miles. They will almost certainly include:

A/T mechatronic sleeve replacement (you need to drop the pan to replace the sleeve and then go through BMW's ridiculous A/T fluid filling procedure from under the car with the engine running)
Oil filter housing gasket replacement
Decarbonizing the intake ports and valves (requires removing the intake manifold and is a recurring maintenance item)
electric water pump and thermostat

This is all DIY stuff for anyone with a Bentley manual and the time to spend a few weekends worth of work.

BMW extended the warranty on the turbo waste gates for a rattle up to 8 years and I think 82k miles. But whether you can get new ones or not, turbos (there are 2 on the 2008) are a wear item. They will need to be replaced if you keep the car long enough.
Out of the issues you listed, only "Decarbonizing the intake ports and valves" is unique to 335.
The other issues have the same likelihood to happen to a 328 as it does to 335.
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