Bmw E39 & E36 & E46 O2 sensor Replacement! 525i/528i/530i

[@elcoqui]

Thank for video is great for mi, my car is bmw 525i 2003 and this is the problem for me thank you Sr good video

[@jamalnasah1625]

THANK YOU

[@valerianpantsulia1730]

Good video and good work, it was very interesting. Thank you /////////////////////////

[@1dykerbklyn]

i have a 1999 528i, question is, are both sensors the same? also are there only the 2 that you showed. thx

[@HelpingHandAutoRepair]

The sensors should be the same but the wiring lengths would be different so they in fact would be different part numbers. You have the two that are shown and then there will be two more after the catalytic converters on both banks.

[@1dykerbklyn]

@@HelpingHandAutoRepair thank you

[@brandihyman1984]

What if its rusted really bad and mechanics are having trouble getting it out I was thinking coca cola for the rust problem do u have any suggestions I have an 02 525i e39

[@HelpingHandAutoRepair]

Unfortunately rust can be a very difficult thing to deal with and every situation is different. I use PB blaster. Soak it for 15-20 mins or even over night. Hopefully they didn’t strip it trying to remove it.

[@lalo2641]

My 02 sensor was loose ,hope it passes smog

[@victorvivas7096]

Hey I got a question I got a BMW 1999 528i I got this codes P1188 and P1189 and code P0304 ,P0306,P0305 .. I just changed my spark plugs and ignition coils.. what should I do? On this codes P01188 and P01189 ?

[@HelpingHandAutoRepair]

Did you delete the codes after you changed the plugs and coil packs? Did you change all the coil packs or only some of them?

[@jumulah7194]

Hi would the oxygen sensor on the 2000 e46 work on a 1999 e39

[@HelpingHandAutoRepair]

Should be the same. Wire lengths might be slightly different

[@kennycassandra5452]

is this o2 sensor affect the emissions? what is the right time to replace this sensor?

[@HelpingHandAutoRepair]

Yes this sensor can affect emissions. O2 sensors aren’t usually considered general maintenance items. Therefore they don’t really have a certain replacement interval. If you have a check engine light on that is giving a code telling you the sensor is bad then replace it. If not, then just leave it alone until you do. This engine has 4 O2 sensors FYI.

[@A_n_u_l_u]

Hey dude. I got 2 codes 202/203 and 227/228. First two means lambda regulating limit bank 1 and 2 -» are these before, or after? I suppose post, so after.

[@HelpingHandAutoRepair]

Are these codes preceded by a “P0?” As in P0202 or P0203? If so those are referring to an injector circuit problem on cylinder 2 and 3 respectively. Also if they are P0227 and P0228, 227 and 228 are referring to APP sensor 3 which is an electronic pedal position sensor.

[@A_n_u_l_u]

@@HelpingHandAutoRepair no P0. These are detected by INPA and no other code reader. All these 4 error codes are mentioning lambda.

[@HelpingHandAutoRepair]

Lol, I am sorry. I was responding to another person and got your codes mixed up with their car. So I was on a 2013 Dodge Dart and not a BMW. You seem to have bad upstream O2 sensors. The 227 and 228 are a direct result of these faulty sensors trying to adjust the air fuel ratio. It would be wise to use a scanner that can read live data to see if in fact the O2 sensors are bad.

[@A_n_u_l_u]

@@HelpingHandAutoRepair no worries! Can it be real as both pre cat sensors are both after cat sensor go wrong at the same time or after a short period? It started with 227/288 now I have 202/203. I’m not sure if these ever been replaced, so I assume still factory sensors are in.

[@HelpingHandAutoRepair]

It’s not likely which is why I said if you can use a scanner or if you have a scanner that can read live data, you can read the data coming from the upstream o2 sensors and see if they are working correctly or not. It isn’t the down stream sensors.

[@kingsconsultingcarrepair2884]

is bank two driver side or passenger side

[@HelpingHandAutoRepair]

Karl Joseph If you have this car with this straight 6 engine then bank two is the SET of exhaust manifolds closest to the inside of the car. If you look at the engine where the exhaust is coming out from the cylinder head. There are 6 pipes total. One set of 3 in the front closest to the front of the car has 1 O2 sensor sticking up. That is BANK 1. There is a second set of 3 pipes that are closer to the inside of the car near the back of the motor with another O2 sensor sticking up. That’s BANK 2. If you are looking for sensor 1 or sensor 2 ON either bank, then sensor 1 is located BEFORE the catalytic converters (ie upstream) and sensor 2 is located AFTER the catalytic converters (ie downstream)

[@lagxpenutpwner]

What is that silver thing on the right of the screen

[@HelpingHandAutoRepair]

Joshua Britton that is the secondary air pump check valve

[@ccisco1598]

I had a misfire it said cylinder 3 and 5 so changed the spark plugs and the check engine light went off but before that another Code that popped up said o2 sensor but it popped off later that day

[@HelpingHandAutoRepair]

It’s possible that they can be intermittent. Just keep an eye on the codes and replace the part if needed.

[@uliseslopez6285]

How many oxygen sensors does a 2003 bmw 530i have ? 👍

[@HelpingHandAutoRepair]

4

[@uliseslopez6285]

@@HelpingHandAutoRepair Thxx

[@tejasmane9175]

is the e36 o2 sensor same as the e39 and e46

[@HelpingHandAutoRepair]

The actual part numbers may differ but the positions on the exhaust manifolds are the same.

[@tejasmane9175]

@@HelpingHandAutoRepair different part numbers but I’m assuming that the o2 sensors with the same input pin will go on any of the 3 models? Correct me if I’m wrong

[@HelpingHandAutoRepair]

@@tejasmane9175 what are you saying? They are in roughly the same locations on all these models with the 6 cylinder engines. If you have an E36, go and ask for and buy an E36 sensor. If you have an E39, go and buy an E39 sensor. If you have an E46, go and buy an E46 sensor. This way you know for sure you will have the correct sensor with the correct plug on it. Sometimes various year ranges can change the sensor connectors and if you try and use a sensor from a different year and/or chassis, it may or may not fit.

[@sharonshaw2896]

WILL THE O2 SENSOR STOP THE CAR FROM STARTING?

[@HelpingHandAutoRepair]

No ma’am.

[@brey93]

Shouldn’t you just replace both o2 sensors while you’re at it?

[@HelpingHandAutoRepair]

You could. This car was showing a code for the one. So the customer just wanted the one replaced.

[@AlexzanderMega]

If I were to have a mechanic shop, do this for my 2002 E39. How much would a mechanic shop, just charge me for parts and labor?🤔

[@HelpingHandAutoRepair]

That price varies depending on where you live. Also depending on which o2 sensor it is. If it were this same one in this video, I would image somewhere in the $200-$300 range.

[@AlexzanderMega]

@@HelpingHandAutoRepair thank you for the info.

[@Adoopafloop]

Could this be the reason for an e3 code and a CA oxygen sensor code? Do I need to reset the DME or anything?

[@HelpingHandAutoRepair]

What code do you have?

[@Adoopafloop]

Helping Hand Auto Repair E3 Mixture deviation cylinders 1-3, and CA oxygen sensor control limit cylinder 1-3

[@HelpingHandAutoRepair]

Are you using a peake scanner?

[@Adoopafloop]

Helping Hand Auto Repair unfortunately not, i only have a c310+ scanner

[@HelpingHandAutoRepair]

I see. Is there another “P code” listed? I am not familiar with the E3 code. I guess to answer your question yes that upstream O2 sensor will provide the most valuable feedback regarding fuel mixture.

[@ronaldswapp3186]

You've got to be kidding, people don't know how to change the upstream 02 sensors?

[@HelpingHandAutoRepair]

Ronald Swapp Some may not lol.

[@WizKid2u]

Need to pan camera...

[@johndeltoro7990]

code P0420?

[@HelpingHandAutoRepair]

Need new cats

[@johndeltoro7990]

@@HelpingHandAutoRepair so you don’t think new O2 sensors would do the trick?

[@HelpingHandAutoRepair]

@@johndeltoro7990 if you have a scanner capable of reading live data, then you can read both down stream O2 sensors and see if they are slow or stuck at a certain voltage. If they are then you can try replacing them and hope for the best. Most cases, the cats are bad.

[@johndeltoro7990]

@@HelpingHandAutoRepair ok so that all being said how do you determine which cat is bad? From my research I believe I have like 4 cats…I truly appreciate your opinion and response…

[@HelpingHandAutoRepair]

@@johndeltoro7990 Well P0420 only points to bank 1 which would Be the upstream catalyst near the head. However you can’t just buy one cat and usually have to buy the whole manifold that comes with both upstream cats. If the downstream O2 sensors are reading correctly, then you can be sure your cats are bad. What you want to see is when you hook up the scanner, take the car for a drive and hold steady around 55-60mph. The downstream sensors (labeled Bank 1 sensor 2 and bank 2 sensor 2) should be reading ~ 0.7-0.8 voltage. Approximately around those values. What you are looking for is for them to stay relatively steady around that voltage. If they are staying steady and then dropping down below 0.6 and then back up to 0.7 or 0.8 then you have marginal cats that are probably near the end of their service life. If the numbers are constantly dropping below 0.6 and staying there, then the cats are bad. If the numbers are stuck at a specific voltage or barely move from a specific voltage. Say the reading is 0.4 and it moves to 0.45 or so and stays there, the the downstream o2 sensors need to be replaced.