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e92 M3 Issue - Advice Needed
#1
Hi Guys,

Got an issue on the vehicle - Limp mode as soon as the vehicle is started. Diagnosis says P2100 Throttle actuator open circuit.

Checked Throttles, cleaned it. Replaced one Throttle actuator (as only one bank was opening)- issue was sorted for 1 day and then presented itself again. Same P2100 error.

Anyone else experienced the same issue and have possible resolution ?

TIA
Current:
e92 M3
Evo II 325is
Golf 5 Gti (GT3076)
'64 Cortina 3.4 V6
Caddy 2.0 8Valve

Ex
Golf 6 Gti (12.3@186 Tarlton Nationals)
Focus ST225
Golf 5 Gti CW
Golf 5 Gti TR
Golf 5 Gti CW
RunX Rsi

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#2
From what I’ve read, when one throttle actuator goes, the second one fails very soon after that, hence many shops advise to replace them in pairs.

Preventative maintenance would be to do the gears inside before any faults occur.

You may need to scan the car again and check where the fault is now
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The following 1 user Likes gavsadler's post:
  • Kyle
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#3
What Gavin said!
The truth is incontrovertible, malice may attack it, ignorance may deride it, but in the end, there it is. ~ Winston Churchill

"A person is smart. People are dumb, panicky, dangerous animals and you know it" (Men in Black)




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#4
From what I’ve read, once you start getting error codes from the actuators the gear replacements don’t work..
[Image: img_1599%202_7447350323.jpg]
Current:
F20 M135i
Alfa Romeo GT 3.2

Ex:
E90 M3 Dynamic LCi, '11 BMW E90 320d MSport, '09 BMW E90 320i Exclusive, '03 BMW E46 330i Individual, '02 BMW E39 525i Individual, '06 Impreza 2.0R Wagon, '03 S3 8L, '11 A3 1.6TDi, '70 VW Beetle 1600 Twin Port '00 A4 2.4 V6, '09 Ibiza Cupra 1.8T, 2013 Vivo Gran Turismo, E36 M3 Coupe, E46 320i Individual MSport, '98 Civic V Tec, E36 318is Msport, E30 318i Coupe,GOLF MK1 GT
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#5
(22-05-2020, 06:37 PM)Kyle Wrote: From what I’ve read, once you start getting error codes from the actuators the gear replacements don’t work..


Yip!!! And a lot of times the gear replacement fail again anyway. Bit the bullet and replace both. M TAX
Current - F20 2018 M140i
Current - E92 2008 M3
Current - E46 2002 M3
Ex - E92 2008 335i N54 FBO
Ex - E46 2004 325ci
Ex - E36 1996 318is
Ex - Ford Escort
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#6
If the gear set is changed prior to EML light then you can expect no issues in the future.
If you get an EML light 95% of the time even with a gear set change the actuator electronics will fail.

Change them and you are in for roughly 24k
The truth is incontrovertible, malice may attack it, ignorance may deride it, but in the end, there it is. ~ Winston Churchill

"A person is smart. People are dumb, panicky, dangerous animals and you know it" (Men in Black)




The following 1 user Likes Peter@AEW's post:
  • Kyle
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#7
Thanks Gents. Let me try changing the second one and see.
Current:
e92 M3
Evo II 325is
Golf 5 Gti (GT3076)
'64 Cortina 3.4 V6
Caddy 2.0 8Valve

Ex
Golf 6 Gti (12.3@186 Tarlton Nationals)
Focus ST225
Golf 5 Gti CW
Golf 5 Gti TR
Golf 5 Gti CW
RunX Rsi

Reply




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