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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 08-04-2012, 09:37 AM   #11321
330xIce
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Dropped it off at the shop because it refused to start... Again

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Old 08-04-2012, 10:20 AM   #11322
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Washed and wax
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Old 08-04-2012, 11:16 AM   #11323
jayb328i
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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
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Old 08-04-2012, 11:24 AM   #11324
e46gaenzle
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can i see a pic?
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Old 08-04-2012, 11:55 AM   #11325
RKiepper
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Originally Posted by jayb328i View Post
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.
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Old 08-04-2012, 11:55 AM   #11326
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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...
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Old 08-04-2012, 11:58 AM   #11327
jayb328i
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http://de.bmwfans.info/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.
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Old 08-04-2012, 12:04 PM   #11328
MercForHire
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most mechanics are monkeys. always do your own simple repairs.
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Old 08-04-2012, 12:32 PM   #11329
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Quote:
Originally Posted by jayb328i View Post
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
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Old 08-04-2012, 12:57 PM   #11330
jayb328i
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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.
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Old 08-04-2012, 01:02 PM   #11331
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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.
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Old 08-04-2012, 01:10 PM   #11332
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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!
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Old 08-04-2012, 01:13 PM   #11333
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err, Fcabs, Oil And Filter.

More stuff on the way.
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Old 08-04-2012, 01:34 PM   #11334
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Old 08-04-2012, 01:47 PM   #11335
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I named my car Blanche today
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Old 08-04-2012, 02:37 PM   #11336
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Originally Posted by WA_E46Fan View Post
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
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Old 08-04-2012, 03:14 PM   #11337
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Just uncovered the real color of my car

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Old 08-04-2012, 03:19 PM   #11338
zengyE46
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Just washed it
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Old 08-04-2012, 03:48 PM   #11339
tomoyer
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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.
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Old 08-04-2012, 04:28 PM   #11340
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Just uncovered the real color of my car

Wtf? Hahaha
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