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E28 (1982 - 1988)

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  #1  
Old 02-04-2010, 11:25 AM
V R Adduri V R Adduri is offline
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Location: Winnipeg, Manitoba, Canada
 
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Mein Auto: BMw 528e
BMW 528E Starting Problems

My Bmw 528e 1988 was running very well until 4 weeks ago. It was parked outside for about 8 hours at about - 30 degree centigrade. I do not usually plug the car . Anyway it refused to start that day. The engine cranked well but it refused to catch. Eventually the battery power was gone and I had to trickle charge the battery for about eight hours.

Next morning it started quite well but ran very rough. After some time the roughness improved and I could drive the car home. I thought that the battery was the problem and it was replaced. After the replacement of the battery the engine started but ran very rough. I tried to take the car for a drive but I could not go for more than 200 feet when it died on me. However, I was able to restart the car only to die again almost immediately. I had to have the car towed to my mechanic who replaced the sparkplugs and the air filter.

The problem continued and I had to take the car to a second mechanic who again replaced the sparkplugs saying that the other sparkplugs were not the right type along with the distributor. The car continued to give the same problem and this time the camshaft sensor was changed. This did not improve the situation.

The rough starting and driving is intermittent in nature. Sometimes the car starts well and runs very well. At least once or twice while it was running quite well it lost its power and the check engine light came on with rough running. The problem is intermittent and I do not know what can be done to correct it. I deeply appreciate any advice and help.
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  #2  
Old 02-04-2010, 02:59 PM
lindted lindted is offline
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Location: Illinois
 
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Mein Auto: 2008 535 xi
I have a 2008 535xi and experienced problems that sound quite similar. The problem ended up being a fuel injector which was replaced. I would get an engine malfunction reduced power icon which would go away eventually. Some times it would start hard and then run rather badly. Some times it would just run a little rough. The dealer was reluctant to replace the injector because of the cost and the fact it never showed a DME code that clearly implicated the injector. All it would show is that cylinder three was misfiring at some time. They replaced the spark plug a few times.
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  #3  
Old 02-05-2010, 07:46 PM
V R Adduri V R Adduri is offline
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Location: Winnipeg, Manitoba, Canada
 
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Mein Auto: BMw 528e
Many Thanks for the prompt advice. I will let you know if it wroks.
VRA
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  #4  
Old 04-22-2010, 08:04 PM
boomhuck boomhuck is offline
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Location: Milwaukee, WI
 
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Mein Auto: 1988 528e, 2007 328i
Hello V R Adduri,

I have the same thing happening on my 88 528e. Did you get anywhere with your issue?
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  #5  
Old 04-23-2010, 01:35 PM
86BlueDoor 86BlueDoor is offline
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Location: New Mexico
 
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Mein Auto: 1986 528e automatic
Just want to throw this out as a possibility. You could have some 'bad' gas in your system.....meaning you could have some 'extra' moisture in your gas/gas tank and because you live in a cold region it causes starting problems.
So try adding a gas treatment that would help remove the 'possible' extra moisture in your system. I use 'Seafoam' from time to time. Good luck!
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  #6  
Old 04-24-2010, 07:55 AM
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catso catso is offline
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Location: Chicago
 
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Mein Auto: 2000 323i, 1988 528e
Quote:
Originally Posted by 86BlueDoor View Post
Just want to throw this out as a possibility. You could have some 'bad' gas in your system.....meaning you could have some 'extra' moisture in your gas/gas tank and because you live in a cold region it causes starting problems.
So try adding a gas treatment that would help remove the 'possible' extra moisture in your system. I use 'Seafoam' from time to time. Good luck!
Moisture in the fuel system could cause these problems. "Iso-Heet" is another product you can try.
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  #7  
Old 05-18-2010, 12:20 PM
boomhuck boomhuck is offline
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Location: Milwaukee, WI
 
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Mein Auto: 1988 528e, 2007 328i
Hey everyone;

So I've done the gas treatment, and it hasn't been effective. Also, I thought that this phenomenon was related to the cold weather, however just last weekend it took me 20 mins to start the car. The symptoms seem like it is not getting gas, but this isn't the case....
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  #8  
Old 05-18-2010, 01:15 PM
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catso catso is offline
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Mein Auto: 2000 323i, 1988 528e
Quote:
Originally Posted by boomhuck View Post
Hey everyone;

So I've done the gas treatment, and it hasn't been effective. Also, I thought that this phenomenon was related to the cold weather, however just last weekend it took me 20 mins to start the car. The symptoms seem like it is not getting gas, but this isn't the case....
You're sure it's getting gas? There's two fuel pumps, one in the tank and one under the car. Both need to be working properly to develop correct pressure. Older cars have lots of corrosion issues especially with electrical connections and relays. Check these carefully. The fuel filter may also be part of the problem, and cheap to replace.
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  #9  
Old 05-18-2010, 03:35 PM
south26 south26 is offline
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It could also be that your main relay or your fuel relay are going bad. You can check the fuel relay by switching it with your horn relay. Also your tranny sensors might be going which will cause the car to not get gas or spark. I would also take your distriputor cap off and see what kind of condition it is in. Last but least clean up your fuses and make sure they are all nice and tight.


Andy
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  #10  
Old 05-18-2010, 03:44 PM
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catso catso is offline
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Originally Posted by south26 View Post
It could also be that your main relay or your fuel relay are going bad. You can check the fuel relay by switching it with your horn relay. Also your tranny sensors might be going which will cause the car to not get gas or spark. I would also take your distriputor cap off and see what kind of condition it is in. Last but least clean up your fuses and make sure they are all nice and tight.


Andy
It's good to know the horn and fuel pump relays are the same. This is a big help in diagnosing problems. We just had a thread regarding a problem like this on the E46 forum (I've got one of those too). The relays are also the same on those newer 3-series cars. A bad cap, rotor, or ignition wires, along with the crankshaft position sensor can also lead to these kinds of problems.
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  #11  
Old 05-24-2010, 09:15 AM
V R Adduri V R Adduri is offline
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Location: Winnipeg, Manitoba, Canada
 
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Mein Auto: BMw 528e
Bmw difficult to start

We could solve the problem by cleaning the mass airflow sensor ,finally. Many thanks for the suggestions. Much appreciated.
VR Adduri
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  #12  
Old 05-27-2010, 04:17 AM
boomhuck boomhuck is offline
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Location: Milwaukee, WI
 
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Mein Auto: 1988 528e, 2007 328i
Thanks for the answer on the air flow sensor/meter... When you said you cleaned it, could you elaborate on how you cleaned it? - Thanks.
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  #13  
Old 05-27-2010, 02:08 PM
LSB M535 LSB M535 is offline
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Location: Napa
 
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Mein Auto: 86 M535i & 03 330ci Mpkg.
E28 NO START: Troubleshooting guide.
Before you check anything fuel related:::::: Check for spark, super Easy, and quick,,, Plugs, Wires, Cap and Rotor, and Coil, All easily accessible and Cold Start Valve!
1- Check Main Relay, and Fuel Pump relay: Best idea to simply change both. they are really cheap!
2- There is one more relay many people overlook and that is the OBC Relay: If your E28 is equipped with the full On Board Computer, and Has the "CODE" function, that Code Button allows you to enter a Fuel Kill code, to disable the fuel injection system for theft protection! so if your OBC Relay which is a Large black box under the driver steering Colum, then that will cut power to the fuel injectors and NO START.
3- Once you have ruled out steps 1-3 Move to checking the fuel pressure regulator- When you crank the engine, check the pressure in the hose before and after the Fuel Pressure Regulator.
3- If that passes, next thing to check would be the fuel filter and BOTH fuel pumps, Pre- In tank, Elec near the Fuel Filter, When was the last time you changed it??
4- If all else Passes you have a BAD MOTRONIC ECU which controls your injection system..........Located in your Glove Box under the vinyl cover/flap!
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Last edited by LSB M535; 05-27-2010 at 02:22 PM.
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  #14  
Old 04-12-2013, 08:15 PM
henri-61 henri-61 is offline
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Location: brooklyn n.y.
 
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Mein Auto: 1986 528e
528e OBC!

Even though this is an older thread..I figured it would be good to update ya'll about my OBC RELAY nightmare..My 86' is of course a gem of a car..a 5 spd. w/ 175k..easily my best car and one I have really enjoyed..I started having problems with my car stalling out of nowhere in Brooklyn NY where I live..and there.. that's a BIG problem..it's street work..period.. eventually after replacing all the obvious possibilities I was still having the same trouble..sometimes not for mos..and sometimes twice in a week!..and one day while checking the ignition switch for power (some goober tried to steal my cc module (?) the night before..potentially in my mind screwing something else up..but he gave up)..so I'm under there on my back just checking for a bad con. with the car running when I just GRAZED the lower 4 wire green clip plug into the OBC relay and the car dies..I start it right back up,touched the green/red wire and it died again..now every road in NYC are quite simply the worst roads this side of Calcutta..THE WORST..even though it is firmly in it's bracket, this wire into this connector/or the clip con. itself ..is not right..(bumps?) so I drive 650 mi. to MI. where I'm from, and just 10 miles in..I get a gr alt light! what! my battery's dead!..and I don't dare touch this wire..I luckily rolled into a gas station..get a jump..30 seconds after pulling the cables it dies again..so it's "c'mon buddy ONE more time" okay, it starts! it idles,it's charging, away I go..I didn't shut her off until I got to MI. 10 hrs. later..whew!..so I check alt connections/starter con. etc (btw spd.sens./alter./batt/coil/cap.AND fuel filter are all 6 mos. old with a new regulator 2 wks. ago)..now with the car running here yesterday in my brothers garage,any contact with this wire caused a stall..bewildered..we check again to see g/r wire connection INTO the port was feeble,,and eventually today it came out..(YAWN,, ya'll diggin' this nightmare so far?) so very carefully we soldered in a good connection to this clip..and at the moment NO START (actually it was no start today at all even before wire came out)..and when we move the wire with the key on it clicks at the main relay..all electrical works fine..but no spark..coil test hot,fuel pumps can be heard..what?..So tomorrow it goes to a buddy, the best mechanic in the state of MI..I am p/od!..Also BTW.. the 5 prong main relay is the same as when I bought the car 5 yrs. ago, a Bosch..And in my troubleshooting,not one new replacement has ever worked..and I've tried 3!..anyway I'll get to the bottom of this..any help is appreciated greatly as I may need that 4 hole female end clip..(I know..'right buddy') but the moral is DO NOT OVERLOOK THE OBC RELAY..IT IS A RULER OF YOUR PERFORMANCE.. FLAT OUT!....Thanks B'FEST and have a nice day!..superdavenyc

Last edited by henri-61; 04-13-2013 at 07:43 PM.
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  #15  
Old 04-13-2013, 05:37 PM
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catso catso is offline
catso
Location: Chicago
 
Join Date: Dec 2009
Posts: 2,967
Mein Auto: 2000 323i, 1988 528e
Quote:
Originally Posted by henri-61 View Post
Even though this is an older thread..I figured it would be good to update ya'll about my OBC RELAY nightmare..My 86' is of course a gem of a car..a 5 spd. w/ 175k..easily my best car and one I have really enjoyed..I started having problems with my car stalling out of nowhere in Brooklyn NY where I live..and there.. that's a BIG problem..it's street work..period.. eventually after replacing all the obvious possibilities I was still having the same trouble..sometimes not for mos..and sometimes twice in a week!..and one day while checking the ignition switch for power (some goober tried to steal my cc module (?) the night before..potentially in my mind screwing something else up..but he gave up)..so I'm under there on my back just checking for a bad con. with the car running when I just GRAZED the lower 4 wire green clip plug into the OBC and the car dies..I start it right back up,touched the green/red wire and it died again..now every road in NYC are quite simply the worst roads this side of Calcutta..THE WORST..even though it is firmly in it's bracket, this wire into this connector/or the clip con. itself ..is not right..(bumps?) so I drive 650 mi. to MI. where I'm from, and just 10 miles in..I get a gr alt light! what! my battery's dead!..and I don't dare touch this wire..I luckily rolled into a gas station..get a jump..30 seconds after pulling the cables it dies again..so it's "c'mon buddy ONE more time" okay, it starts! it idles,it's charging, away I go..I didn't shut her off until I got to MI. 10 hrs. later..whew!..so I check alt connections/starter con. etc (btw spd.sens./alter./batt/coil/cap. are all 6 mos. old with a new regulator 2 wks. ago)..now with the car running here yesterday in my brothers garage,any contact with this wire caused a stall..bewildered..we check again to see g/r wire connection INTO the port was feeble,,and eventually today it came out..(YAWN,, ya'll diggin' this nightmare so far?) so very carefully we soldered in a good connection to this clip..and at the moment NO START (actually it was no start today at all even before wire came out)..and when we move the wire with the key on it clicks at the main relay..all electrical works fine..but no spark..coil test hot,fuel pumps can be heard..what?..So tomorrow it goes to a buddy, the best mechanic in the state of MI..I am p/od!..Also BTW.. the 5 prong main relay is the same as when I bought the car 5 yrs. ago, a Bosch..And in my troubleshooting,not one new replacement has ever worked..and I've tried 3!..anyway I'll get to the bottom of this..any help is appreciated greatly as I may need that 4 hole female end clip..(I know..'right buddy') but the moral is DO NOT OVERLOOK THE OBC RELAY..IT IS A RULER OF YOUR PERFORMANCE.. FLAT OUT!....Thanks B'FEST and have a nice day!..superdavenyc
Good luck with your problem, let us know how it all works out.
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  #16  
Old 04-13-2013, 06:53 PM
henri-61 henri-61 is offline
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Mein Auto: 1986 528e
528e OBC

Thank you sir..I most certainly will..even though I feel after going thru the same thing today,including trying my backup Motronic,that it's going to be something dumb and embarrassing.. it just turns over,even the fuel can be felt in the rail,all dash lights work etc..today I rechecked and cleaned all my connections carefully and even tried jumping port 11 to 14 on the diagnosticator to bypass ign. switch..just turn over..I just wonder how it is I made it 650 miles the other day..divine BMW god intervention?

Last edited by henri-61; 04-13-2013 at 07:16 PM.
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  #17  
Old 04-13-2013, 10:33 PM
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catso catso is offline
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Location: Chicago
 
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Mein Auto: 2000 323i, 1988 528e
Quote:
Originally Posted by henri-61 View Post
Thank you sir..I most certainly will..even though I feel after going thru the same thing today,including trying my backup Motronic,that it's going to be something dumb and embarrassing.. it just turns over,even the fuel can be felt in the rail,all dash lights work etc..today I rechecked and cleaned all my connections carefully and even tried jumping port 11 to 14 on the diagnosticator to bypass ign. switch..just turn over..I just wonder how it is I made it 650 miles the other day..divine BMW god intervention?
Any kind of intervention other than a trip to the dealer is divine for us BMW owners!
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