E46 Fanatics Forum banner
1 - 20 of 237 Posts

· Registered
01 325i Touring. 07 E91 Touring. 90 Chevy C2500 RCLB.
Joined
·
771 Posts
Discussion Starter · #1 · (Edited)
Please note that this thread is purely a blog of what I'm doing to this car and is not meant to used as a guide. Attempt at your own risks.

Hi everyone.

This is my first BMW and also the first time wrenching on one.

I came from a background of an SR swapped S14, Lexus GS, and an S2000 which is my current toy. I've done all of the work up to this point myself aside from anything welding related. Blew up and swapped my fair share of engines an transmissions between those cars. I'm definitely not a mechanic but I do appreciate the mechanical of cars in general and is willing to learn.

One random Sunday afternoon I came across a Craigslist ad for an E46 parts car that's still "running" with 234K miles on the clock. I'm a sucker for wagons so this was a great opportunity I thought. When I saw the car it was surprisingly complete down to the cargo partition and even the tool set and the spare.

I brought a generic OBD2 scanner with me and was able to pull up 8 codes for misfires, lean condition, and cam angle sensor. Luckily I have a good buddy out of state who is very familiar with BMWs and he told me to just buy it if it can move on its own power. We grew up wrenching on cars together where I trust his advice so I went for it. The owner wanted $1K for the car but I was able to negotiate it down to $700. Drove away with a 2001 E46 auto touring with one key, missing title and 8 codes that I had no ideas how to fix. At this point I've mentally prepared myself for some catastrophic scenarios with the engine and transmission. Luckily I was able to limp the 18 miles home backfiring and all.

I'm the 3rd owner and the car had zero accidents according to Carfax. Seems to the true when I started digging into it. Aside from a couple cracked wood trims, missing grills and dead speakers everything else works.

May 23rd to July 16th it took me to make the wagon reliable and pass emission. I pretty much took a crash course in learning how to wrench on and diagnose an E46 between this forum, my buddy and YouTube. The journey in between is nothing like what I've been through with my other toys.

The link below detailed what I did to make the car legal and drive-able.

Struggling with P0171, P0174

I thought this would be an experience to share with you guys since I've learned so much from the forum as a first time BMW owner. I will update this post with the various stages of rehab and upgrade until the thread catch up to current time so bear with me.

Goals for the car? Nothing in particular. This is my cruising sled. It'll be my long term project and potentially be a forever project. Short term was to revive it and get my registration sticker. Long term is to make it reliable and handles like it's on rails.

Day 1

First priority was to clean the interior since I'm OCD.

Interior was dirty but amazingly almost intact. Exterior had some dings, paint on the hood is a bit dull but overall I can't complaint for how much I've paid since my goal was just to get my hands on a touring shell that's still intact.

Found a spent .223 in the cabin and 9mm under the hood. Car was absolutely filthy inside and outside. It sat unregistered since early 2020 where the previous owner seems to have given up on the maintenance and repair. Zero maintenance record aside from some random receipts for tires and brakes from 2019.

Got some sweet E91 Style 286 with decent Michelins on along with the car. I'm a wheels whore so it was the first thing that caught my eyes.
932201
932202
932203
932204
932205
932206
932207
932208
932209
932210

To be continued.
 

· Registered
01 325i Touring. 07 E91 Touring. 90 Chevy C2500 RCLB.
Joined
·
771 Posts
Discussion Starter · #2 ·
Day 2.

Time to hit the emission codes. The gal lived next to the beach so there were sands mixed with oil everywhere.
932213


Got a smoke machine in anticipation of all the vacuum leaks.

932214


Almost everything I touched vacuum related crumbled. CCV, intake boots an various vacuum lines.

932215
932216

932219


Took some Simple Green and a pressure washer to the underside of the valve cover and all the vanity covers.

932217


I think I was FCP's customer of the month at one point.

Replaced items:

. CCV and all associated hoses
. Intake boots
. SAP vacuum hose
. Fuel regulator / filter vacuum hose
. Spark plugs
. Ignition coil boots
. Valve cover gasket and rubber grommets
. DISA seal
. DISA metal flap and bolt upgrade
. Viton oil dipstick o-ring
. Cleaned ICV
. Intake filter
. Cabin filter
. Vacuum junction by the driver side firewall. Got an ECS metal junction

932220


I was ecstatic when i popped off the valve cover. Seems like the oil was changed often and regular.

932221


This is snowballing at this point.

To be continued.
 

Attachments

· Registered
Joined
·
175 Posts
your car ran!? LOL, that is awesome. It took me three weeks to get my non-runner back on the road. I am your competition for the customer of the month at this time. The shell casing is a nice touch. In AZ that is pretty much standard equipment in a used car. It wouldn't even warrant a photo!
 

· Registered
01 325i Touring. 07 E91 Touring. 90 Chevy C2500 RCLB.
Joined
·
771 Posts
Discussion Starter · #4 ·
your car ran!? LOL, that is awesome. It took me three weeks to get my non-runner back on the road. I am your competition for the customer of the month at this time. The shell casing is a nice touch. In AZ that is pretty much standard equipment in a used car. It wouldn't even warrant a photo!
Lol. I can’t hang with the effort you’ve put in your car. Respect!

The shell casings are not normal for a Cali resident like me.
 

· Registered
01 325i Touring. 07 E91 Touring. 90 Chevy C2500 RCLB.
Joined
·
771 Posts
Discussion Starter · #6 ·
The cheap code reader won't give you even half the story. INPA and a USB cable and laptop are going to be your best friend getting all the codes read so you can properly resolve those pesky issues.
I’ve learned that quickly. Ended up getting OBD Fusion and the OBD Bluetooth widget to start logging and diagnostic per Archbid and Jfoj’s recommendation.

Eventually I will follow your advice and work towards the INPA AND USB cable to get a handle on things. I’m still learning this platform.
 

· Registered
01 325i Touring. 07 E91 Touring. 90 Chevy C2500 RCLB.
Joined
·
771 Posts
Discussion Starter · #8 ·
one tip with INPA, use google translate on your phone to read the software. German to English. Makes the code reading so much easier than doing the translation through the application. 🤪
Thank you and noted. I did not know that.
 

· Registered
01 325i Touring. 07 E91 Touring. 90 Chevy C2500 RCLB.
Joined
·
771 Posts
Discussion Starter · #9 · (Edited)
While I was waiting for more parts from FCP I attacked the VANOS, ignition system and went back to cleaning out the interior.

Replaced
. Spark plugs
. Ignition coils boots. I did not know that these were meant to be replaced with each spark plugs change
. Valve cover gasket with new grommets
. Oil dip stick o-rings. Get the $9 Harbor Freight Viton o-rings kit. Definitely worth it if you're a gear head.
932355
932357


Found the original window sticker digging through the car and learned that I have Xenon headlights and sport suspension. The headlights were so cloudy I thought it was fake HIDs. Suspension is so shot I couldn't even tell.

932358

Valve cover gasket and spark plug wells gaskets were done. Cylinders 3, 4 and 5 were soaked in oil. I could see where the misfiring stems from at this point.
932356
932360

932361

932362


I love Simple Green

932363
932364

932365

Got all the broken vacuum components replaced, VANOS refreshed. All buttoned up and now to trace the emission codes.

The plan was to get the car to pass emission first then I'd tackles the cooling, OFH, transmission afterward. That dented the budget a bit earlier than expected.

More to come.
 

· Registered
Joined
·
1,256 Posts
Found the original window sticker digging through the car and learned that I have Xenon headlights and sport suspension. The headlights were so cloudy I thought it was fake HIDs. Suspension is so shot I couldn't even tell.

View attachment 932358
Sorry but your Wagon does not have Sport Suspension. That was only offered with the $1700 Sport Package Option in the U.S.
So when the time comes to renew the suspension, you may want to consider different Struts and Springs if you want a lower, firmer Sport Package ride.

Your Window Sticker does say "sport wagon", but BMW called all of them "sport wagons".
 

· Registered
01 325i Touring. 07 E91 Touring. 90 Chevy C2500 RCLB.
Joined
·
771 Posts
Discussion Starter · #13 · (Edited)
I got rid of 6 codes by this point. The only two remains were P0171 & P0174. While I was trying to generate a log to share on here it got better. The return hose under the intake manifold decided it had enough. Luckily I made it to my driveway before I noticed the needled moving.
932369
932370

Literally dumped all the coolant out on my driveway. When they fail, they all fail at the same time.
932371
932372
932373


Cleaned out the bores with some fine sandpaper on a socket.

932374


Fresh. Got the new pipes in with the new engine coolant temperature sensor.
932375
932376
This time the whole intake manifold came out. More on that fun stuff later.

Replaced the following.
. Radiator and hoses
. Thermostat and housing
. Water pump
. All coolant lines
. Engine coolant temperature sensor
. Various coolant o-rings
. Expansion tank
. Expansion tank cap
. Coolant sensor
. Belts
. Pulleys and tensioner

Chasing the cause(s) for the lean codes had to stop since the car is back on stands for the cooling job. Good thing this is not my daily driver.

Next up are the OFH, DISA flap rebuild and more vacuum repair.

To be continued.
 

· Registered
01 325i Touring. 07 E91 Touring. 90 Chevy C2500 RCLB.
Joined
·
771 Posts
Discussion Starter · #14 ·
Sorry but your Wagon does not have Sport Suspension. That was only offered with the $1700 Sport Package Option in the U.S.
So when the time comes to renew the suspension, you may want to consider different Struts and Springs if you want a lower, firmer Sport Package ride.

Your Window Sticker does say "sport wagon", but BMW called all of them "sport wagons".
Thanks for pointing that out. I’m a total newbie to this. I’ll post more on the suspension bits later since those are on their ways.
 

· Super Moderator
Joined
·
3,255 Posts
Congrats- I think a rust- and damage-free rwd e46 is always going to have value, even with high miles.
Your interior looks pretty good.

You could manual swap it and upgrade to an M54 3.0 and have a $10,000 wagon.. Although by that time you‘ll enjoy it so much you won’t want to sell it.

I always test the hard coolant pipes before reinstalling the intake.
-Connect all coolant components
  • install a gutted thermostat with a decent gasket
  • add < 20 psi thru the bleed screw using a compressor or borrow a free pressure tester from autozone
 

· Registered
01 325i Touring. 07 E91 Touring. 90 Chevy C2500 RCLB.
Joined
·
771 Posts
Discussion Starter · #16 ·
Congrats- I think a rust- and damage-free rwd e46 is always going to have value, even with high miles.
Your interior looks pretty good.

You could manual swap it and upgrade to an M54 3.0 and have a $10,000 wagon.. Although by that time you‘ll enjoy it so much you won’t want to sell it.

I always test the hard coolant pipes before reinstalling the intake.
-Connect all coolant components
  • install a gutted thermostat with a decent gasket
  • add < 20 psi thru the bleed screw using a compressor or borrow a free pressure tester from autozone
Thank you!

I’ve already started collecting the manual swap parts.

Even at it current state I’m already enjoying the car way more than I thought I would. Definitely a keeper.
 

· Banned
Joined
·
7,951 Posts
Sorry but your Wagon does not have Sport Suspension. That was only offered with the $1700 Sport Package Option in the U.S.
So when the time comes to renew the suspension, you may want to consider different Struts and Springs if you want a lower, firmer Sport Package ride.

Your Window Sticker does say "sport wagon", but BMW called all of them "sport wagons".
I say upgrade the front and rear sway bars, put in 330 kingpins and rotors up front and trailing arms in the rear, then put in sport shocks and struts. Now you are a real sport wagon!

You have to replace most of it anyway (ok, not the trailing arms and kingpins, but those aren't that pricey at PnP. And your car will be cooler for it!
 

· Registered
01 325i Touring. 07 E91 Touring. 90 Chevy C2500 RCLB.
Joined
·
771 Posts
Discussion Starter · #20 ·
I say upgrade the front and rear sway bars, put in 330 kingpins and rotors up front and trailing arms in the rear, then put in sport shocks and struts. Now you are a real sport wagon!

You have to replace most of it anyway (ok, not the trailing arms and kingpins, but those aren't that pricey at PnP. And your car will be cooler for it!
Thanks for the reminder on the sways.

I’ve already got ST XA coilovers ordered. FLCA bushings (Powerflex), FLCA, RTAB (Powerflex), M3 ball joints for the rears. Totally forgot about the sways and associated bushings.

I’ll research the 330 trailing arms.

I’ll let these brakes wear out then I’ll go from there.
 
1 - 20 of 237 Posts
Top