Newcomber Z4 E89 SDrive 35i

Raven61 · Post by **Raven61** » Sun Nov 27, 2022 11:09 pm

Hello everyone,

I've been reading your contributions and I would want to thank everyone for the inputs on all those issues.

I hope to learn and if possible to contribute to others with some lessons learned myself.

Cheers

Mr Tidy · Post by **Mr Tidy** » Sun Nov 27, 2022 11:24 pm

Hi and welcome to the forum.

But we do like to see photos!

MikeyH · Post by **MikeyH** » Mon Nov 28, 2022 12:03 am

Hello, welcome to the forum, as Mr Tidy, photos please.

Raven61 · Post by **Raven61** » Mon Nov 28, 2022 7:52 am

Hello there
You are absolutely right...my mistake.
Yesterday i wasn't in a mood because i had just bought
my car...a 35I with 176k kms but looks good.
I drove it from Porto to Lisbon (367 kms...8,4l/100km). Everything was fine until the next day. I decided to just go out for a ride. Suddently the engine amber light came on. The car is working fine...today i'll be taking it to the BMW gatage.

About photos:

Raven61 · Post by **Raven61** » Mon Nov 28, 2022 7:54 am

Front view

N4LLY · Post by **N4LLY** » Mon Nov 28, 2022 6:26 pm

Most excellent !

Congrat's

Hope the EML is not a major issue.

Ole gits rule · Post by **Ole gits rule** » Mon Nov 28, 2022 7:03 pm

hello and welcome to the forum, hope the EML light is a minor issue

Nanu · Post by **Nanu** » Mon Nov 28, 2022 8:35 pm

Welcome, hope it's nothing serious

Mr Tidy · Post by **Mr Tidy** » Mon Nov 28, 2022 8:55 pm

Your Z4 looks great!

Good luck getting the EML extinguished.

Raven61 · Post by **Raven61** » Mon Nov 28, 2022 11:23 pm

Hello,
As i said, i took the car to a Bosch Car Service. The diagnose was pretty bad. It seems that at some point of the cars life, someone gave it a "Downpipe" .... which means basically getting rid of the catalyst. Since the ECU tries to read values from the catalyst, but doesn't find any, it trows an error (EML amber comes on).

I confronted the dealer with this tecnical report, and i was told to bring in the car ...which will be fitted with two catalyst missing.

Raven61 · Post by **Raven61** » Mon Nov 28, 2022 11:25 pm

Photos....downpipe

B21 · Post by **B21** » Mon Nov 28, 2022 11:29 pm

All makes sense…two options refit primary catalysts and O2 sensors or find a third party to code the error code light out.

Are the secondary catalysts in place?

I assume the car has been tuned as well ?

Raven61 · Post by **Raven61** » Tue Nov 29, 2022 12:03 am

Hi B21,

1) Are the secondary catalysts in place? I didn' know there were secondary catalyst.
Where are they located?

2) I assume the car has been tuned as well ? I thought it wasn't possible to find out if it was reprog....
How can it be found...if soo?

B21 · Post by **B21** » Tue Nov 29, 2022 12:17 am

See picture, unless you’ve had a complete exhaust I assume the secondary cats are still in place which means the car MAY still pass an emissions test..

A good tuner or a BMW main dealer can check / take back to stock any tune…most others will never know..

Raven61 · Post by **Raven61** » Tue Nov 29, 2022 1:29 am

Thanks B21.
(Good diagram)

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