[LadyBlue911]

Hello. Hope someone can help provide some insight. I have a 2011 335d with 131,000 miles. I have had no problems with the car up until a few weeks ago. I am currently throwing the following fault codes, which is not allowing to pass inspection:

- EGR COOLING SYSTEM: P2457
- SCR NOx EFFICIENCY LOW: P20EE
- REDUCT PRESSURE LOW: P20E8

Will repairing these issues encourage more fault codes down the road, hence more money dumped in to it? I have a BMW Technician who does alphabet delete w/tune on the side and he indicates that with a tune it WILL pass inspection.

The only test motor vehicle does in Delaware is the OBDII.

The cars runs great and is not in limp mode.

What do you suggest:

- GET RID OF THE CAR
- REPAIR THE ISSUES
- DO ALPHABET DELETE W/TUNE

[Owen81]

Delete, tune and don't look back!
I don't have experience with emissions readiness but I would message your tuner privately and make sure this is possible. The popular tunes around here are:

BRR
DUDMD
Malone
JR Tuning

[KJ335D]

Full Delete and enjoy the benefit of better fuel savings & power performance.
while your at it check and replace the following:
HB (Matt Wittbread vs. Fluidampr) get kit w/belts and new bolts. Wittbread is 1/2 the price of Fluidampr.

vacuum lines
Thermostat
waterpump
Turbo seals and Orings on the 3 trubo lines . Aarodriguez has a kit for this specially if your at 130k. Assuming no maintenance records.

DUDMD is most economic. he has a sale going on 15% off his stage 2. Join NABMW forum on FB and get more savings by reaching out to him on FB once you join group.

Once you get delete done I recommend you get TCU mechatronic maintenance kit from FCPeuro and a Tune from Sutphin as you will see power and performance gains and very smooth shifting.

** If your goal is building big with Hybrid turbos, Meth, NOS and then I would research more as new things coming out and options for turbos and stage 4. tunes are very limited out there.

Good Luck

[RL18]

Delete it and get it tuned. Beware though once you feel the power the mod bug will get ya hard

[Blown284]

Originally Posted by RL18

Delete it and get it tuned by BRR. Beware though once you feel the power the mod bug will get ya hard

True story!

[Goboro100]

Alphabet Delete and maintenanceZ. Only fix what’s wrong right now and then you can take your time with all the maintenance stuff.

Originally Posted by LadyBlue911

Hello. Hope someone can help provide some insight. I have a 2011 335d with 131,000 miles. I have had no problems with the car up until a few weeks ago. I am currently throwing the following fault codes, which is not allowing to pass inspection:

- EGR COOLING SYSTEM: P2457
- SCR NOx EFFICIENCY LOW: P20EE
- REDUCT PRESSURE LOW: P20E8

Will repairing these issues encourage more fault codes down the road, hence more money dumped in to it? I have a BMW Technician who does alphabet delete w/tune on the side and he indicates that with a tune it WILL pass inspection.

The only test motor vehicle does in Delaware is the OBDII.

The cars runs great and is not in limp mode.

What do you suggest:

- GET RID OF THE CAR
- REPAIR THE ISSUES
- DO ALPHABET DELETE W/TUNE