BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

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      03-04-2014, 08:45 PM   #1
suspenceful
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Not a n00b, but I've got a few questions before buying a 1 series.

Looking at picking up a 135i and I'm looking for some answers.

First off, would you buy an '08 with 80k miles? It has been taken care of and brought to the BMW dealership, but everything I've looked at has lower miles. When I asked about the HPFP, he knew what I was talking about and said it was already replaced along with the water pump.

Second off, how does JB3 work? He said the car has a JB3 20hp chip. I'm unfamiliar with Juice Box tunes or how they work. I've had a piggyback on my Miata and swapped it over to a standalone Megasquirt, but don't know what JB tunes are classified as. I tend to stray away from 'chips' because I feel out of control as far as tuning.

Anything else I should really look for or look at when I go to check it out?

I appreciate any replies!
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      03-04-2014, 09:22 PM   #2
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Have turbos been replaced? Warranty runs out at 80k to cover wastegate rattle.

Try to check for leaking oil filter housing and valve cover as those are common. Ask if coils and injectors have been replaced and when because there have been revisions to those parts.

Ask if a walnut blast has been done. Ensure all records are up to par and the owner has taken care of her
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      03-04-2014, 09:25 PM   #3
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How many owners?

Do you gave a budget where upping the price paid a little will get you lower miles?
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      03-04-2014, 09:29 PM   #4
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Quote:
Originally Posted by johngrossi View Post
Have turbos been replaced? Warranty runs out at 80k to cover wastegate rattle.

Try to check for leaking oil filter housing and valve cover as those are common. Ask if coils and injectors have been replaced and when because there have been revisions to those parts.

Ask if a walnut blast has been done. Ensure all records are up to par and the owner has taken care of her
Turbos have not been replaced. He works at a dealership and says there is no wastegate rattle. I will ask about the coils and injectors as well as look for leaks in those areas.

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How many owners?

Do you gave a budget where upping the price paid a little will get you lower miles?
He is the 2nd owner. It was bought in Germany buy a guy in the army, then he bought it back after his term. They are friends.

I have a higher budget, but if this one is sound, that means more money for maintenance if needed... and mods! Always nice to have a cushion.
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      03-04-2014, 09:34 PM   #5
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If you do have a higher budget I would consider lower mileage always just due to down the road maintenance costs.

Depending on what's out there. maybe a newer 135 with fewer miles and remaining maintenance and warranty is definitely a plus. Also from how it seems the n55 engine is a bit more refined and less quirky than the n54.
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      03-04-2014, 09:35 PM   #6
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Quote:
Originally Posted by johngrossi View Post
If you do have a higher budget I would consider lower mileage always just due to down the road maintenance costs.

Depending on what's out there. maybe a newer 135 with fewer miles and remaining maintenance and warranty is definitely a plus. Also from how it seems the n55 engine is a bit more refined and less quirky than the n54.
I'm set on a 2008 for multiple reasons. I'm planning on doing some mods, so a warranty doesn't really matter if I'm going to void it.

Obviously the lower the miles, the better. Just not sure if these are super unreliable as they get up there. Haven't seen too many people post about theirs with that many miles. I'm curious.
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      03-04-2014, 09:39 PM   #7
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There are more than a few guys on here in the 100s and running strong. Don't remember who but maybe they will chime in.

If your not concerned about warranty and you can get a steal on the car provided it is well taken care of with no outstanding issues then I don't see why not to pick it up.

Have you asked why he is selling it?
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      03-04-2014, 09:43 PM   #8
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I'm not too familiar with the JB3 as the latest is the JB4 G5 board version of the BMS piggyback controllers that can do a lot more. I would plan on selling that tune and either getting a JB4 or a flash tune option. Look into JB4, Cobb or BB Flash depending on features your looking for and comfort level of flashing.
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      03-04-2014, 10:10 PM   #9
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Quote:
Originally Posted by brusk
I'm not too familiar with the JB3 as the latest is the JB4 G5 board version of the BMS piggyback controllers that can do a lot more. I would plan on selling that tune and either getting a JB4 or a flash tune option. Look into JB4, Cobb or BB Flash depending on features your looking for and comfort level of flashing.
+1 jb4 really takes the piggy back to the next level
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      03-04-2014, 10:52 PM   #10
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Definitely jb4
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      03-04-2014, 10:53 PM   #11
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Definitely jb4
I get that JB4 is the way to go. But how does this JB3 work? Can I connect to it to modify things, or is it a set tune? Can I just unplug it and put it back to factory without any hassle?
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      03-04-2014, 11:17 PM   #12
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Too many miles for me, but that's just a personal opinion. I also try to avoid modded cars. It may well be a good car, but, for me, I would pass.
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      03-05-2014, 09:32 AM   #13
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Quote:
Originally Posted by suspenceful View Post
I get that JB4 is the way to go. But how does this JB3 work? Can I connect to it to modify things, or is it a set tune? Can I just unplug it and put it back to factory without any hassle?
Its just a piggyback boost controller. Should be pretty simple to remove. I don't know what kind of options the JB3 has. What all things would you like to modify? The N54 uses a closed loop fueling using wideband O2 sensors meaning you don't have to worry about changing fuel settings. It's also really good at retarding timing before knock so the JB4 alone is good for low to medium power with the proper supporting mods from there you will need something to handle a flash to cover the fueling and timing settings. Some people prefer flash only some prefer a JB4 + Flash.
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      03-16-2014, 09:22 PM   #14
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FWIW, I'm just about 80k miles. Running strong as ever with routine maintenance (including walnut blasting).
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      03-17-2014, 03:31 PM   #15
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Thanks guys, she's due for a walnut blasting but I finally picked her up!

http://www.1addicts.com/forums/showt...php?p=15618940
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