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-   -   335i questions (https://www.bimmerfest.com/forums/showthread.php?t=978139)

bimmer765 05-08-2017 08:04 PM

335i questions
 
I've found a 2010 335i with 70K miles. Took it out for a test drive and it ran great, but the engine had a cylinder 1 misfire when we got back
after it was warmed up. Also the a/c was blowing hot air, is it common for the evaporators to leak on these? I have a bmw scanner from ecs tuning
and it only came up with two codes, one for the cylinder 1 misfire and another was a low power code for the instrument cluster. If it was low on freon
would there be a code for that?

josh783 05-08-2017 09:00 PM

Quote:

Originally Posted by bimmer765 (Post 10150153)
I've found a 2010 335i with 70K miles. Took it out for a test drive and it ran great, but the engine had a cylinder 1 misfire when we got back
after it was warmed up. Also the a/c was blowing hot air, is it common for the evaporators to leak on these? I have a bmw scanner from ecs tuning
and it only came up with two codes, one for the cylinder 1 misfire and another was a low power code for the instrument cluster. If it was low on freon
would there be a code for that?

I just got my 335i back from bmw, had a misfire in cylinder 5. Was told could be injectors, plugs or fuel filter. Turned out to be stuffed camshaft, valves and lifters with a $7k bill. [emoji35]

Sent from my SM-G920I using Tapatalk

F10-N52 05-08-2017 09:28 PM

Misfire most likely due to failing ignition coil cheap and easy fix. I had one fail on me at almost the same mileage.

CALWATERBOY DUE 05-08-2017 09:48 PM

Quote:

Originally Posted by bimmer765 (Post 10150153)
I've found a 2010 335i with 70K miles. Took it out for a test drive and it ran great, but the engine had a cylinder 1 misfire when we got back
after it was warmed up. Also the a/c was blowing hot air, is it common for the evaporators to leak on these? I have a bmw scanner from ecs tuning
and it only came up with two codes, one for the cylinder 1 misfire and another was a low power code for the instrument cluster. If it was low on freon
would there be a code for that?


Which scanner is it? [click me] and pay attention to the misfire diagnosis link.

fxrs1955 05-09-2017 04:31 AM

Quote:

Originally Posted by bimmer765 (Post 10150153)
I've found a 2010 335i with 70K miles. Took it out for a test drive and it ran great, but the engine had a cylinder 1 misfire when we got back
after it was warmed up. Also the a/c was blowing hot air, is it common for the evaporators to leak on these? I have a bmw scanner from ecs tuning
and it only came up with two codes, one for the cylinder 1 misfire and another was a low power code for the instrument cluster. If it was low on freon
would there be a code for that?

Find an indy you can trust and have him check it out before you buy?

Zooks527 05-09-2017 05:08 AM

Quote:

Originally Posted by bimmer765 (Post 10150153)
Also the a/c was blowing hot air, is it common for the evaporators to leak on these?

It is not common. Sure, any car can have A/C issues, but I honestly can't recall the last time I saw someone with an A/C complaint on the E90 board.

07335 05-09-2017 05:34 AM

Get a PPI. Misfires are commen and due to plugs and coils. Easy DIY and good deals on Amazon for bosch parts.

bimmer765 05-09-2017 06:10 AM

Quote:

Originally Posted by Zooks527 (Post 10150492)
It is not common. Sure, any car can have A/C issues, but I honestly can't recall the last time I saw someone with an A/C complaint on the E90 board.

If its the evaporator leaking thats a huge job. The dealer I found it at are pretty much only bmw and mercedes. They said they would take care of it, but that might be just add freon and send it out.

Sent from my SM-G920R4 using Bimmerfest mobile app

jat335i 05-09-2017 09:37 AM

I bought my 2010 E92 335i new and haven't had any issues with misfiring or bad coils and neither have I had any A/C problems (or required recharging). Earlier this year (@ 81,000 miles), I had my trusted mechanic replace the spark plugs (preventive maintenance) as well as the VGC and OFHG (leaking due to normal age/wear). My ride has 85,000+ miles on the odo and all has been running fine since the first day I drove it home.

Porando 05-09-2017 09:47 AM

Quote:

Originally Posted by bimmer765 (Post 10150153)
I've found a 2010 335i with 70K miles. Took it out for a test drive and it ran great, but the engine had a cylinder 1 misfire when we got back
after it was warmed up. Also the a/c was blowing hot air, is it common for the evaporators to leak on these? I have a bmw scanner from ecs tuning
and it only came up with two codes, one for the cylinder 1 misfire and another was a low power code for the instrument cluster. If it was low on freon
would there be a code for that?

"Also the a/c was blowing hot air, is it common for the evaporators to leak on these?"

It appears that way.
Couple years ago when I was about to run out of manuf warranty, I went to dealer to have evaporator cleaned as it started to smell a bit from AC..
SA told me that they will do the test for the evap leak as they've already replaced several with leak... And couple hours later, he confirmed that indeed evap leaks and it will be replaced - and this would be 2 days job because the whole dashboard and center console have to be removed.. they have cooling agent leak detection device.
So i hope that replacements are more reliable.

CALWATERBOY DUE 05-10-2017 01:43 AM

.

For OP:


https://youtu.be/IYVBcn4LB7I

ramblinman 05-11-2017 01:14 PM

I had an e46 that needed a new compressor at about 100k. That's not uncommon. I have a 2008 e92 with about 55k on it and the a/c works perfectly. I have never had a problem with an evaporator. But I've had a number of cars where the compressor failed, or a seal began to leak. If your car is blowing hot air, any good mechanic should be able to do a test of the refrigerant pressures. You may need to pay for an evacuate and recharge, with a dye injected, if your refrigerant is gone. The dye is used with a UV light to detect leaks, and a pressure test will tell if the compressor is working. Sometimes the compressor seizes up. If that happens, you would know because the drive belt will make a lot of noise and you may smell burning rubber from the belts moving across the pulley that won't move, if you try to keep the ac on.

TahoeSun 05-11-2017 03:44 PM

Delphi coils are better than the Bosch ones IMO. Cheap and easy fix. Plugs are also on Amazon with the Delphi coils. I replaced both coils and plugs and my car runs like new again.

Walmart for the AC fluid. It's the same thing as air in the can that one would use to de-dust a computer keyboard. Buy the can with the pressure gauge so you can see the pressure you're putting into the system. I did mine when the AC was blowing less than cold. Fixed it easily.

And pay for a PPI from a local and trusted indy. $200 spent is always cheaper than $4000 in repairs. And buy a car from an owner who knows BMWs. Otherwise get a big discount for your troubles.

GL. These are great cars. I've owned 7 BMWs since 2001 (E46's, X5, X3, E93)


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