SL55/63/65/R230 AMG: SL55 - Intercooler Pump problem???
04-07-2009, 07:51 AM
#26
MBWorld Fanatic!
If I can make a couple of additional comments...
The SL55's heat exchanger is larger than the heat exchangers on some other 55K engines and it's sandwiched between the radiator and the air conditioning heat exchanger. Because of the positioning it's not really practical to swap it out for an even larger unit. Instead, the normal upgrade path is to add a second heat exchanger in series with the stock unit. The W220 cooling circuit has that second heat exchanger. Take a look at the attachments to see the stock R230 and W220 cooling setups.
Second, although the first generation Bosch unit was pretty lame, the second generation unit seems to work much better. I was able to hot lap 11.4 second 1/4 mile runs with the stock heat exchanger and the second generation Bosch pump. I've since added a second heat exchanger along the lines of the W220 setup and was able to reach 1/4 mile trap speeds of 125 and 126 MPH. In order to produce those times and speeds my engine has to be producing around 650 bhp. The second generation Bosch pump has been able to keep up with that increase in horsepower.
FWIW....
The SL55's heat exchanger is larger than the heat exchangers on some other 55K engines and it's sandwiched between the radiator and the air conditioning heat exchanger. Because of the positioning it's not really practical to swap it out for an even larger unit. Instead, the normal upgrade path is to add a second heat exchanger in series with the stock unit. The W220 cooling circuit has that second heat exchanger. Take a look at the attachments to see the stock R230 and W220 cooling setups.
Second, although the first generation Bosch unit was pretty lame, the second generation unit seems to work much better. I was able to hot lap 11.4 second 1/4 mile runs with the stock heat exchanger and the second generation Bosch pump. I've since added a second heat exchanger along the lines of the W220 setup and was able to reach 1/4 mile trap speeds of 125 and 126 MPH. In order to produce those times and speeds my engine has to be producing around 650 bhp. The second generation Bosch pump has been able to keep up with that increase in horsepower.
FWIW....
04-07-2009, 10:27 PM
#27
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2008 Maserati QP EGT, 2005 SL55AMG , 2002 CLK55AMG 2002 C230K Coupe
Does the IC coolant co-mingle with engine coolant?
If I can make a couple of additional comments...
The SL55's heat exchanger is larger than the heat exchangers on some other 55K engines and it's sandwiched between the radiator and the air conditioning heat exchanger. Because of the positioning it's not really practical to swap it out for an even larger unit. Instead, the normal upgrade path is to add a second heat exchanger in series with the stock unit. The W220 cooling circuit has that second heat exchanger. Take a look at the attachments to see the stock R230 and W220 cooling setups.
Second, although the first generation Bosch unit was pretty lame, the second generation unit seems to work much better. I was able to hot lap 11.4 second 1/4 mile runs with the stock heat exchanger and the second generation Bosch pump. I've since added a second heat exchanger along the lines of the W220 setup and was able to reach 1/4 mile trap speeds of 125 and 126 MPH. In order to produce those times and speeds my engine has to be producing around 650 bhp. The second generation Bosch pump has been able to keep up with that increase in horsepower.
FWIW....
The SL55's heat exchanger is larger than the heat exchangers on some other 55K engines and it's sandwiched between the radiator and the air conditioning heat exchanger. Because of the positioning it's not really practical to swap it out for an even larger unit. Instead, the normal upgrade path is to add a second heat exchanger in series with the stock unit. The W220 cooling circuit has that second heat exchanger. Take a look at the attachments to see the stock R230 and W220 cooling setups.
Second, although the first generation Bosch unit was pretty lame, the second generation unit seems to work much better. I was able to hot lap 11.4 second 1/4 mile runs with the stock heat exchanger and the second generation Bosch pump. I've since added a second heat exchanger along the lines of the W220 setup and was able to reach 1/4 mile trap speeds of 125 and 126 MPH. In order to produce those times and speeds my engine has to be producing around 650 bhp. The second generation Bosch pump has been able to keep up with that increase in horsepower.
FWIW....
04-28-2009, 11:01 AM
#30
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C32
I have similar problems with my C32... I must change IC pump, but I am not sure which one to take; stock Bosch or Johnson CM30? Otherwise car is all original condition. Would stronger Johnson pump damage my IC unit?
Tnx
Tnx
10-12-2009, 05:55 AM
#31
Member
Is the Johnson CM30 pump a direct replacement or is there some level of modification required? Also, is there a code that I should watch for to know for sure that my pump needs replaced?
10-12-2009, 08:51 PM
#32
MBWorld Fanatic!
Minor mods required for a CM30. If your pump fails the drop off in performance will be very noticeable.
06-27-2010, 10:38 AM
#35
Super Member
Contigo,
No, that does not have to do with the IC pump problem.
I would have your cars coolant system checked out ASAP. That's not something you want to let go unmaintained.
No, that does not have to do with the IC pump problem.
I would have your cars coolant system checked out ASAP. That's not something you want to let go unmaintained.
06-28-2010, 12:37 PM
#36
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sl65
01-02-2011, 08:31 AM
#38
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I have the 030 package on my 2007 SL55. This has an extra heat exchanger up front (passenger side). Does anyone know if this is an extra cooler for the supercharger circuit or an oil cooler for engine or even possibly transmission?
01-05-2011, 08:14 PM
#39
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Mercedes E55 AMG (2006), Mercedes 560 SEL (1991)
Had similar power issue on my 06 e55. Resolved issue by changing the IC coolant pump. Installed the updated Mercedes item instead of the Johnson because I didn't want to modify electrical connectors et al...and my beast was back. Supercharger became available at all times. Simply never cut off no matter how hard or long I ran.
Must mention however that no fault showed up when diagnostics were run. Dealer therefore kept insisting nothing was wrong. To get them to change the pump I had to download the details and pictures from this forum. My advice is simply to change the pump yourself. Trivial DIY task. Remember to bleed though per instructions on the forum.
Brgds
Must mention however that no fault showed up when diagnostics were run. Dealer therefore kept insisting nothing was wrong. To get them to change the pump I had to download the details and pictures from this forum. My advice is simply to change the pump yourself. Trivial DIY task. Remember to bleed though per instructions on the forum.
Brgds
01-05-2011, 10:39 PM
#40
Member
Well, considering that that particular heat exchanger is an engine oil cooler, yes, I would expect oil to come out when it is loosened. If you're wanting to upgrade the cooling for the charge air, you have the wrong heat exchanger.
01-06-2011, 09:29 AM
#41
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18 Titan XD 13 Cayenne TT 13 BMW HP4
Must mention however that no fault showed up when diagnostics were run. Dealer therefore kept insisting nothing was wrong. To get them to change the pump I had to download the details and pictures from this forum. My advice is simply to change the pump yourself. Trivial DIY task. Remember to bleed though per instructions on the forum.
Brgds
Brgds
03-20-2011, 11:51 AM
#43
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sl65
Can you please tell us if your issues on your sl65 are similar to mine please?
03-20-2011, 12:04 PM
#44
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2004 SL55
If I can make a couple of additional comments...
The SL55's heat exchanger is larger than the heat exchangers on some other 55K engines and it's sandwiched between the radiator and the air conditioning heat exchanger. Because of the positioning it's not really practical to swap it out for an even larger unit. Instead, the normal upgrade path is to add a second heat exchanger in series with the stock unit. The W220 cooling circuit has that second heat exchanger. Take a look at the attachments to see the stock R230 and W220 cooling setups.
Second, although the first generation Bosch unit was pretty lame, the second generation unit seems to work much better. I was able to hot lap 11.4 second 1/4 mile runs with the stock heat exchanger and the second generation Bosch pump. I've since added a second heat exchanger along the lines of the W220 setup and was able to reach 1/4 mile trap speeds of 125 and 126 MPH. In order to produce those times and speeds my engine has to be producing around 650 bhp. The second generation Bosch pump has been able to keep up with that increase in horsepower.
FWIW....
The SL55's heat exchanger is larger than the heat exchangers on some other 55K engines and it's sandwiched between the radiator and the air conditioning heat exchanger. Because of the positioning it's not really practical to swap it out for an even larger unit. Instead, the normal upgrade path is to add a second heat exchanger in series with the stock unit. The W220 cooling circuit has that second heat exchanger. Take a look at the attachments to see the stock R230 and W220 cooling setups.
Second, although the first generation Bosch unit was pretty lame, the second generation unit seems to work much better. I was able to hot lap 11.4 second 1/4 mile runs with the stock heat exchanger and the second generation Bosch pump. I've since added a second heat exchanger along the lines of the W220 setup and was able to reach 1/4 mile trap speeds of 125 and 126 MPH. In order to produce those times and speeds my engine has to be producing around 650 bhp. The second generation Bosch pump has been able to keep up with that increase in horsepower.
FWIW....
03-20-2011, 03:35 PM
#45
MBWorld Fanatic!
The two diagrams on page one are not accurrate for all R230s. My 2004 SL55 has the "small" radiator mounted in front of the main radiator. I don't have the 030 package. I have another diagram showing only the little radiator for the R230. I have no info about model or year for the diagram. Does anyone know if there are differences between the various years? Does mean some R230s have two radiators, not one.
03-20-2011, 09:40 PM
#46
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18 Titan XD 13 Cayenne TT 13 BMW HP4
I bled the ic and same problem, car is running good but when under wot for a long time it starts to heat up. What is your iddle temp on your sl65? We where planning on looking at the thermostat, my pump seems to work ok when tested at the shop, also thinking i might have problems with water pump and at wot it isnt pumping enough water to cool.
Can you please tell us if your issues on your sl65 are similar to mine please?
Can you please tell us if your issues on your sl65 are similar to mine please?
08-12-2012, 07:40 PM
#48
09-08-2012, 05:35 PM
#49
Junior Member
Hi-
I have a Garmin EcoRoute for reading OBD2 info while driving. Would an intake manifold temperature near coolant temperature be an indicator of a healthy coolant pump?
I have a Garmin EcoRoute for reading OBD2 info while driving. Would an intake manifold temperature near coolant temperature be an indicator of a healthy coolant pump?
09-08-2012, 06:39 PM
#50
MBWorld Fanatic!
Your IAT (intake air temps) numbers would be high and stay high (120/170 range) if you had a bad IC pump. Sounds like its the same thing as "intake manifold temperature".
