* What did you do to/for your E46 today? *

Dropped it off at the shop because it refused to start... Again

Sent from my ADR6425LVW using Bimmer App

Washed and wax

Code 1421--Secondary Air Pump bad.
Okay, after a few hours of research on the BMW sites to understand what this code means, checked everything out carefully, switched fuses around, examined all the hoses carefully.
The hose from the Air Pump to the value looked and felt perfect from all angles. But careful examination revealed a small crack on the bottom. Removed it and the entire inside was rotted --went to BMW to get a replacement--$23 with discount. Done. Interesting that one of the posts said that he paid something like $500 to have pump changed with value which did not fix problem since it was the hose. I was hoping it was the hose, and it was

can i see a pic?

Originally Posted by jayb328i

Code 1421--Secondary Air Pump bad.
Okay, after a few hours of research on the BMW sites to understand what this code means, checked everything out carefully, switched fuses around, examined all the hoses carefully.
The hose from the Air Pump to the value looked and felt perfect from all angles. But careful examination revealed a small crack on the bottom. Removed it and the entire inside was rotted --went to BMW to get a replacement--$23 with discount. Done. Interesting that one of the posts said that he paid something like $500 to have pump changed with value which did not fix problem since it was the hose. I was hoping it was the hose, and it was

I don't know if it's just me or not, but I love the sound that pump makes when it spools up.

Cleaned the trash out of the interior. Poor car hasn't had a bath or vacuum in almost 2 months, been too crazy traveling and now taking a summer class. Final is Friday, she'll get some more love starting Saturday morning. Thank goodness she is usually in a garage at home, at work or at school...

http://de.bmwfans[/img] ** SPAM LINK BLOCKED ** Report this post to the moderators [img]parts/catalog...trol_air_pump/

Must be 50 pages written up on the BMW sites on this topic. Most say when you get a p1421 code it is a bad Secondary Air Pump. That plus the valve cost over $400 in parts.
Need to first check hoses, fuse. I was lucky that all I needed was a hose at $23. From what I saw, it appears that many mechanics would read the Code and just change the Pump and Valve.
See picture of hose on above link.

most mechanics are monkeys. always do your own simple repairs.

Originally Posted by jayb328i

Code 1421--Secondary Air Pump bad.
Okay, after a few hours of research on the BMW sites to understand what this code means, checked everything out carefully, switched fuses around, examined all the hoses carefully.
The hose from the Air Pump to the value looked and felt perfect from all angles. But careful examination revealed a small crack on the bottom. Removed it and the entire inside was rotted --went to BMW to get a replacement--$23 with discount. Done. Interesting that one of the posts said that he paid something like $500 to have pump changed with value which did not fix problem since it was the hose. I was hoping it was the hose, and it was

I have the same code, thanks for this. Saved me some research time. I'll check the hose first. Although I'm hearing a squealing noise at startup so I'm almost positive mine is actually the pump.

Quick wash on mine today to get all the agricultural dust off my Betsy

Hey 96--
For code 1421 and related codes, check this site out--it is one of the better ones
http://www.bavauto.com/newsletter/20...newsletter.pdf

I did not have the noise so I was lucky. From what I read the noise probably means the Pump is bad. But the issue is why. My research showed that you must also change the check valve also--otherwise it may cause the new one to fail. In addition, bad hoses and pipes on the system may cause failure. I am about to check the pipes out and change them maybe. A leak in the "pipes" will also throw that code.

Big day today, my car got:

Complete BMW inspection and tweaks that included:
New shifter seal and fluids
Control arms and bushings
Front brake rotors, pads, sensors
Vacum, wash, wax and detail
Full tank of premium and a rip down the highway.....

All maintence completely up to date and done, and I feel really good. Now the fun stuff, up next are new wheels and a few mods.

Originally Posted by ac_2007

That is one fugly diffuser.

Thanks works well with my soon to be 600hp sc m3
FYI, that diffuser is made by R|M Motorwerkz....if memory serves me correct they only built 6....hpf ftw!

err, Fcabs, Oil And Filter.

More stuff on the way.

I named my car Blanche today

Originally Posted by Hebrew Hammer

I named my car Blanche today

Originally Posted by WA_E46Fan

Definitely looks way better! I remember installing my spacers and it made such a HUGE difference. My parents both thought it was a waste because they were only 12.5mm front and 20mm rear. But once it was done, they were amazed how much better it looked. Your car will look even better with a drop. I have OEM sport suspension and it looks good with spacers...obviously! I could have gone a little bigger all around. Such as 15mm in the front and 25mm in the rear, but it looks good the way it is.

Thanks man. Yeah, i didn't really want to go any wider than 15 even in the back. Little too aggressive for an automatic xi. Bordering on rice even lol.

I like mods that make non-fanatics go "it looks good, but i dunno why. Can't put my finger on it" lol

Just uncovered the real color of my car

Just washed it

Well today my '03 325xi got a new serpentine belt, it was time. Quick, easy 15 minute job. Remove the Air Intake over top the radiator, disconnect the 2 electric fan wiring connectors and lift the electric fan assembly out of the car, T45 wrench to remove tension from AC tension pulley, AC belt off, 8 mm allen to remove tension from serpentine belt tension pulley and old belt off, new belt on and back on with AC belt, back in with fan assembly, connect wires and put air intake back on. Good for another 60,000 miles or 5 years. Cost, $24.00 plus PA Sales Tax. Savings, at least $124.00 over dealer. Satisfaction of doing it yourself, PRICELESS.

Originally Posted by Crespo5190

Just uncovered the real color of my car

Wtf? Hahaha