How to find out if it's a 4HP22-EH or 4HP22?

E28 technical advice asked and given! Troubleshooting, modifications and more.
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n00dle
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How to find out if it's a 4HP22-EH or 4HP22?

Post by n00dle »

Hi, I've got an '85 535i Auto. How can I find out if the auto trans is 4HP22-EH or 4HP22? I'm looking for a replacement driveshaft and apparently they're different for each. Thanks.
m535is
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Post by m535is »

Almost certain the '85 is a non-EH. Real OEM confirms that, but you should try to put your VIN into it and see what it comes back with.

This is also assuming no one has done a non-EH to EH swap.
Kyle in NO
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Post by Kyle in NO »

If there is no selector knob on the shifter trim, it's a non-EH, as all US '85 e28 models with an auto trans were. Also, under the hood, on the throttle linkage, there will be three cables instead of two. The third one is the downshift cable for the non-EH transmission.
Mike W.
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Post by Mike W. »

Correct, 85 should be a regular hydraulic one, not electronic. An EH car would have the little 3 position knob on the console with settings for normal, sport and economy, (or something like that) along with the regular A/T shift handle.
Motronic
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Post by Motronic »

Yes, what Kyle said.

also you can check the label on the drivers side of the tranny for more confirmation.
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n00dle
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Post by n00dle »

Thanks for the replies, I really appreciate it. The car has been in the family since 1986 and don't think the trans was swapped. It's just been a dependable daily driver. Other than the power window buttons and auto shift selector there are no other knobs/buttons on the console. There's no sport, normal, or eco knob/button. Real OEM shows that's it's a 4HP-22/H. I will look for the cables and try to find the label on the driver side.

Earlier I used this link I found on using this forum http://www.bmw-z1.com/VIN/VINdecode-e.cgi
and inputed the VIN and got the confusing info below, which showed both transmissions, hence posting the question here.

Vehicle code DC84
Series E28
Model 535i
Body type saloon
Catalog model USA
Production date 1984 / 12
Engine M30
Transmission Automatic
Steering Left
Catalyzer YES

Production FROM : 1984/10/01 TO : 1987/12/31
Engine M30 B34
Engine Oil 5.75 Liter
Transmission Automatic
Transmission Model 4HP-22/EH

Production FROM : 1984/10/01 TO : 1987/12/31
Engine M30 B34
Engine Oil 5.75 Liter
Transmission Automatic
Transmission Model 4HP-22/H
Kyle in NO
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Post by Kyle in NO »

No knob = non-EH

No need to dig any deeper than that.
n00dle
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Post by n00dle »

Tried to locate the label from the top without success. I suspect I need to look from underneath the car for it.

Got a couple of snap shots of the selector and cables.

Image

Image
Kyle in NO
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Post by Kyle in NO »

As I said, no knob and 3 cables = non-EH.
n00dle
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Post by n00dle »

Kyle in NO wrote:As I said, no knob and 3 cables = non-EH.
Cool, got it. Can you tell me if this one that would fit? The description states "not for cars with rear CV joint ", but I believe there are CV joints in the rear for the half shafts.

http://www.turnermotorsport.com/p-4922- ... -1985.aspx
Shifty535
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Post by Shifty535 »

The 4hp22-EH was made in Canada, eh
Mike W.
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Post by Mike W. »

n00dle wrote:
Kyle in NO wrote:As I said, no knob and 3 cables = non-EH.
Cool, got it. Can you tell me if this one that would fit? The description states "not for cars with rear CV joint ", but I believe there are CV joints in the rear for the half shafts.

http://www.turnermotorsport.com/p-4922- ... -1985.aspx
By no CV joint they mean on the driveshaft. But there was a thread just a couple of days ago on D/S and Mesa Performance was only $325 for one. My limited dealings with them were very good, and they're at least semi local to you.

http://www.mesaperformance.com/web_stor ... 0379.19664
n00dle
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Post by n00dle »

Mike W. wrote: By no CV joint they mean on the driveshaft. But there was a thread just a couple of days ago on D/S and Mesa Performance was only $325 for one. My limited dealings with them were very good, and they're at least semi local to you.

http://www.mesaperformance.com/web_stor ... 0379.19664
Awesome, thanks for the lead.
n00dle
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Post by n00dle »

Mike W., just wanted to update that I did end up using Mesa Performance for the driveshaft. They're kinda local, but it was easier and cost effective to just have them ship it. It wasn't worth the gas or time to run down there. Spencer at Mesa took care of what I needed quickly and was pleasant doing business with. The car rolls vibe less and smooth now :haul:
Mike W.
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Post by Mike W. »

Cool, another Mye28 success story! And good on the D/S from them, I fear I may need one on the E36. :bawl:
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