Mercedes slk k40 relay. Find great deals and sell your items for free.

Mercedes slk k40 relay Wiring Diagram. Took it so SUN Motor Cars in Mechanicsburg, Pa. A2105400072. After fixing that I had the bad idle issue, cleaning the throttle body fixed this. A forum Wiring diagram of relay module (K40) Code: Designation: Position: A45 7 E Horn / airbag clock sprin contact A45x2 8 G Horn / airbag clock sprin contact connector H2 15 L Fanfare horns H2 K40/4 fuse & relay module on the right side of the engine compartment. Yes, a gold unit would be a reference unit that could be swapped in to allow people who have a suspect K40 to use a good unit; if this clears the problem, then resolding the K40, Buy Genuine 1705450305 Multi Purpose Relay: Relay Control Module - Amazon. I followed your instructions to check the K40 relay Mercedes SLK R170 Facelift K40 Relay A1705450205. Mercedes-Benz, SLK, SLK230, R170, K40 Think its indicating its the k9 relay which appears to give battery power to the ECU. Come Sep 2, 2024 · If not, I will pull the k40 relay to check the ABS relay. 1 2. A forum community ON 2001 MERCEDES SLK 230 NO CRANK REPLACE K40 RELAY STILL SON CRANK. 40a fuse ok. Dave2302 · 1998 mercedes slk 230 kompressor. I have no relay layout drawing, but the K40/4 k relays are identified on the circuit diagram below. If when trying to start the car Genuine Mercedes Relay Module InStock Ships Today! $115. Come K40 Relay issue in India, please help, need to Repair the relay Hey Guys, I know this issue has been discussed a lot, I'm having serious trouble with starting my SLK up. It looked normal with no burn marks. check the new one out it had K40 Relay board on SLK230 Concerning the K40 relay board, my local MB dealer wanted to replace my ECU @$1650 without ever considering the possibility of anything Checking K40 relay module tomorrow This is a good pic to reference. Struggling to find where to buy one in the UK? Any recommendations bar eBay from US etc, obviously no I have had three R170's in with the exact set of faults as yours within the past 12 months and every one was a fault in K40, specifically Traction Relay area and all symptoms were gone as soon as the K40 was replaced K40 relay or K40 relay module? Just searched the net for a k40 relay for my 98 slk230. I put in in and it started right away. On regular occasions the car will cut out, everytime its because the F5 fuse, one of the blue 15 amp fuses located on what is commonly My SLK320 (2004 reg, R170) requires a new K40 relay. As a footnote, an observation: The colour of the pins on the connectors of the K40 relay indicate that some of the pins really got hot. For the pump to operate it needs 12v from the two 15A Car would start run for a second then stop. In the case of the BM it was a faulty fuel pump relay. 540. R170. Fuse number F2 and F3 on K40 relay are getting no power Mercedes-Benz SLK 230 2004 Kompressor 2. I thought it had something to do with the lock and alarm system. My 230 SLK had the same issues- wouldn't start at times, although the battery was fine. 81. Reactions: Australian. It has a new k40 relay, a new 010 pump with the proper fuse and it still has some slight acceleration issues after being driven for a few minutes. if I hold the relay for the fuel pump closed the pump runs and the Does the K40 relay issue also effect the SLK200? Save Share Like. I also changed the crankshaft position sensor. 99 + £12. Here's the K40 diagram: Mercedes SLK World. Because the If Pump runs with 12V applied directly to it, then go back to the Pump Relay output feed Wire at K40 and apply a positive there, if it now runs it is very likely within K40. where is the k40 relay located on slk 230 1998 . Customer: IM WORKING ON 2001 MERCEDES SLK 230 NO Document number: pe54. For the K40 relay buy MB brand or Stribel brand (Stribel is the OE supplier to MB). com: The #1 Mercedes-Benz SLK Forum from Florida! Replaced K40 Relay and problem solved! Hi All, I joined the SLK Forum because we were having the "lights on, fast engine fan but no starter Hope I don't get in trouble for starting a new thread - the big K40 Relay thread seems to be closed for new replies. Other searches found mentions of many configuration variations depending on models and New and used Mercedes-Benz Slk-Class for sale in Beruli, Dhaka, Bangladesh on Facebook Marketplace. First, the customer complaint: car It has a list at the end where the K40 can be found (it might not be comprehensive). I am My '99 SLK 230 died while driving. Didn't crank after it and cooling fan blowing. Popularity - 4 watchers, 0. 1512186869136-2014557794_1512186922321. Relay: electromagnetic; SPDT; Replaced the original K40 Relay and can hear the relays clicking inside as well as I can hear FAN when I turn on the ignition. On the K40 relay SLK 230 connector e-pen 3 is supposed to receive a it is not getting that signal I can jump over a - Answered by a verified Mercedes Mechanic Anyone got any questions on the Project: K40 Overload Relay Repair for your Mercedes SLK 230? Here's a back link to the original article: Pelican K40 relay box testing and replacement Mercedes-Benz SLK 230 / R170. A Should I just purchase a new K40 relay module, could it be the fuel pump itslef even though its clearly doing its job sending fuel to the engine for a second when a new fuse is Hi Everyone, @BaD_81, @M4rCu5, @jbanks15, @LeonardoDaBenz, @Australian, @halligood, @Avel Du, @Rofa I received the k40 last night from Autohauz. SLK R170 K40 Relay? Thread starter Bustermou; Start date Sep 3, 2010; Bustermou Senior K40 Relay on an R170 SLK Thread starter gbjeppm; Start date Nov 1, 2019; Nov 1, 2019 #1 gbjeppm MB Enthusiast. Got the car and after 50miles, check engine light came on. A forum community I have already checked out the K40 Relay and Board. You could test it by tracing the 12v supplies. You could do this as many times as you wanted. I was having starting problem with my 2002 SLK 230 , ordered a new K40 relay board from a dealer ( on line ) installed it and still had the same promlems . First, the customer complaint: car Apr 17, 2024 · Immediately started to think I have finally succumbed to the k40 problem. Compatible with Select If you continue to have problems check your K40 relay, see other posts. I put the Alligator Welcome to SLKWorld. P0410, p0170, p0173, p0410, p0130, p0150, p0155 and K40/2 fuse & relay box on the left side of the engine compartment. Mercedes SLK World. Attachments. This week's tech post will cover diagnosing, removing, and installing a multi-function relay module in a 2000 Mercedes SLK230 roadster. State: Historic Overvoltage supply. 3L L4 - K40 Relay Bazzle. I need to change the MERCEDES SLK ENGINE MANAGEMENT K40 RELAY MODULE. . org forum is one of the largest item 8 mercedes slk r170 1996 - 2004 w210 w170 w463 k40 fuse relay a1705450205 mercedes slk r170 1996 - 2004 w210 w170 w463 k40 fuse relay a1705450205. See page 90 of the wiring diagrams. K40/4 On the K40 relay SLK 230 connector e-pen 3 is supposed to receive a it is not getting that signal I can jump over a - Answered by a verified Mercedes Mechanic. 2 new watchers per day, 19 days for sale on eBay. I could even see two of the relays working (connecting) when the car key was in the position Document title: Wiring diagram of relay module (K40) Code: Designation: Position: A45 Fanfare horns and airbag clock spring contact 7 K A45x2 Clock spring contact and fanfare horn system Just to eliminate one possible problem, I'll replace the brake light switch this afternoon. £114. I saw here in the forum that the K40, is responsible for many functions, among then the engine control, which I think this is the problem, when overheated. 20-U-2000D (Up to Feb 28,2000) Fuse and Relay Module (K40) Up to Feb 28, 2000. The K40 relay is located in the control module box, under the hood. I found great info in the intermittent start topic. K40k6 is the relay (internal to the K40) and K40f4 is the fuse. Dave2302 · I checked my k40 relay and everything looks OK. The summer is just about here and my SLK is just sitting there collecting dust! Thanks a million guys! :bowdown: Easy way to find out if it's the K40 relay is to run a hard This is the K40 relay module with sec air pump relay incorporated. item 6 Mercedes Slk R170 Pre Facelift 1996 So I've been developing a K40 module from scratch. Can any advise how much this should cost - just as a part by itself, with no labour - thanks in advance! Paul . Find great deals and sell your items for free. K40 Relay. On the last issue, I looked carefully at the diagrams and noted: The X12/1 is the ignition supply coming in on D2 1998 Mercedes SLK 230 Kompressor Joined Jun 4, 2007 · 333 Posts #108 Could be either K40 relay module or Crank Position sensor, but . There are two outputs from the K40 from fuse 2. MERCEDES BENZ SLK R172 2014 2. Naturally, I will inspect the K40 relay again. 03. A forum community dedicated item 2 mercedes benz r170 slk k40 engine management relay module a2105400072 pre-face mercedes benz r170 slk k40 engine management relay module a2105400072 pre-face. May Qualify For FREE SHIPPING. Sort by Oldest first Oldest first Newest Mercedes SLK World. Lately It started stopping while driving and not restarting. Fast engine fan but no engine crank. The problems that you are reffering here, and which I have, point My 1999 SLK230 Automatic is having cut-out problems, I am suspecting it is the K40 relay. Step by step guide on how to fix a common problem with the K40 Relay unit in a R170 series Mercedes Benz SLK 230. Thanks a bunch for the detailed infor and pictures which says more than a thousand words. com FREE DELIVERY possible on eligible purchases. used a different key to start car. It has the symptoms of a A2105400072 MERCEDES SLK ENGINE MANAGEMENT K40 RELAY MODULE. 3L L4 - Gas Mercedes-Benz SLK 230 2003 Kompressor 2. 4M posts 84K members No problems starting it. Perusal of the K40 schematic suggests this Well, 2 weeks and no issues at all. My 1999 SLK230 Automatic is having cut-out problems, I am suspecting it is the K40 relay. Come join the 3 brake switches and 1 K40 relay and I still have the BAS/EPS warning light! Very frustrating! What's weird is shutting off and re-starting will clear it. I will look into it ASAP. took the k40 relay out did a terrible job resodering it. A forum community dedicated to k40 relay replacement videos MEYLE Multifunctional Relay For MERCEDES S210 W210 W463 95-04 2105400072 | eBay new k40 box u$106+$10 shipping to NZ ex Latvia Mercedes-Benz SLK 230 K40 Overload Protection Relay Repair | 1998-2004 | Pelican Parts DIY Maintenance Article Does your SLK have starting, idling, and engine I can't seem to capture an image, sorry, but yes, your car has an air pump, yes, your car has a K40, and yes, the relay (and fuse) for the air pump is part of the K40. 79. Even tested the relays. K40/4 I have removed the k40 twicw to double check. This mainly affects smooth op and fuel pump. 4810 Jan 7, 2024 · Many first generation R170 SLKs eventually have issues starting up due to a faulty relay. I tried it again for the next 3 days and it stated fine every May 31, 2014 · This week's tech post will cover diagnosing, removing, and installing a multi-function relay module in a 2000 Mercedes SLK230 roadster. Removed the K40 relay and did a visual inspection. Reactions: Below is a pic of my K40 relay out of my 1997 E320. SLK R170 General Discussion. For instance, check on the input to a relay (the coil) and see if you have 12v. I tried it again for the next 3 days and it stated fine every Mercedes-Benz SLK 230 K40 Overload Protection Relay Repair | 1998-2004 | Pelican Parts DIY Maintenance Article ONE MERCEDES-BENZ SLK R170 K40 RELAY I own a 1999 SLK 200 Kompressor with 50K miles. I haven't soldered yet, so this will be new to me. I've tracked it down the the k40 relay, it does not activate the fuel pump relay when the ignition is switched on. Let's say you want to look at the fuel pump. I was expecting to get reamed, but I escaped with a $450 bill to replace the K40 relay. I looked into the thread from santamonica, did all Mercedes Benz R170 SLK Class Cars. 21 - 26 of 26 Posts. Buy It Now +$44. Come My SLK 320 R170 2002 car has sporadic issues with starting, process of elimination leads me to a faulty K40 relay. 4M posts 84K members Since 2006 A Before I put in the new K40 relay I had a code under the CCM - Multifunctional Control Module. BenzWorld. First, the customer complaint: car Hmm thanks for that, this 1999 SLK 230, k40 relay#3 fuse has a15amp fuse. Joined Oct 31, 2006 Messages 1,782 Location Surrey Car Mercedes Benz R170 SLK Class Cars. I'm wondering if the two solder joints in the top right corner qualify as needing redone? My car won't start now and all Bazzle Thanks from central texas. Pre-Owned. Ordered Mercedes K40 relay. I have a 2003 SLK320 I recently disconnected the battery to take out the K40 relay board & re-solder the 3 suspect connections Also my research led me to think I may have the symptoms of a bad k-40 relay, or possibly even a bad CPS. Jump to Latest #1 · Sep 19, 2007. reinstalled k40. On the diagram I have one k40 relay. 8 KB Views: 697. 00 USD, installed it and the SLK is back in full power. Come Dec 11, 2021 · Returned the Meyle K40 relay. My diagram of the K40 relay suggests this wire might be Black/Green, but you will find out. org forum is Hi, I have an SLK 230 R170 with possible symptoms of a K40 relay fault. If you are sure fuel It has a new k40 relay, a new 010 pump with the proper fuse and it still has some slight acceleration issues after being driven for a few minutes. from United Kingdom. This issue is more common in the early model item 2 mercedes benz r170 slk k40 engine management relay module a2105400072 pre-face mercedes benz r170 slk k40 engine management relay module a2105400072 pre-face. Returned the Meyle K40 relay. Relays and Modules; 2001 UK SLK 200k manual, 115k miles I bought the car about 18months ago My car has an intermittent starting problem but will almost never start. K40 relay - This seems to be a popular place to start. 4M Problem: f3 was blowing on the K40 relay module and shutting the engine down (not good when you're pulling out of a junction!) Fix: I removed connector A from the K40, the Customer: Hi I have a 2000 slk 230 I have a fuel problem and have tracked it down to the k40 relay. 75. Call (310)626-8765. This is what mine does & sounds like yours too. Thanks! bazzle said: Early SLKs suffered from soldered joint failures on the K40 pcb. I have just repaired mine. Save Share Reply Quote Like. Come join the Hi guys and girls, 2002 SLK 320. Jump to Latest Follow Status Not open for further replies. Started the car the other day to charge up the battery as I've always been doing. A forum community dedicated to Mercedes SLK owners Your Mercedes 2004 SLK320 May 31, 2024 #1 Hello. Resoldered the Jul 1, 2014 · K40 relay module. When the K40 relay fails, the starter won’t even crank even if the battery is fully charged. K40/4 fuse & relay module on the right side of the engine Thanks slk230red for the info and picture of the K40 relay module but this pulse relay module also known as pulse module or relay module or front relay fuse box control module etc etc has a different part # and looks very 1999 Slk - Does this look like a K40 relay module problem? I do not have any problems with SC cutting off or the car refusing to crank that have been associated with the Seller: tl99999 ️ (2,315) 100%, Location: Welwyn, GB, Ships to: GB & many other countries, Item: 256591606702 Mercedes SLK R170 - K40 Fuse and Relay Module replacement relay . 3L L4 - Gas Mercedes-Benz SLK 230 2002 Kompressor 2. Come Mercedes Benz R170 SLK Class Cars. Welcome to SLKWorld. I found what appears to be a k40 relay, but not the k40 relay module described in previous posts. I have replaced the ESP Control Unit and ABS Pump (second hand known good), however these where different part I took apart the old k40 and turn the key and relay 3 and 2 close and a click noise comes from the top of the engine. pre-face lift. I have inspected and even performed the re-solder on the K40, Check my post added to the sticky on K40 relay issues. Having checked out your K40, i would suggest that messing with the Fuse and Relay Module (K40) PE54. Skip to; Main content; Keyboard shortcuts Search. I've seen the soldering videos online on how to do it. A forum community dedicated to Mercedes SLK owners and enthusiasts. Come MERCEDES SLK ENGINE MANAGEMENT K40 RELAY MODULE. The k40 relay was replaced several years ago with a new OEM part-I'll check that Customer: Hi there I am in desperate need of some advice. Also I tried removing the K40 relay circuit board and re-soldering the 3 solder joints on the circuit board that some videos say are the real problem with the relay. Hi. My 2001 SLK230 has always run fantastically, annual K40 relay module | Mercedes SLK World You could also look up a few YT Vids and include Crossfire RCM or Relay Control Module in your search, same thing Of course, another 3. Mechanic's Assistant chat. This is a very common 2004 SLK 320 died while driving and new K40 relay did Reactions: Jimmylegs. Found that ECU relay in K40 relay box didn't close. Any advice on the following appreciated. Free postage. 72 2105400372 Starting with the K40 relay issues (stalling and not wanting to start with the fan going on max speed). The relays i'm using are rated for 60 amps max (G8PM-1AW7R), and seem to work well. The 15a fuses are ok. Both items seem If your cooling fan is running when you turn the ignition on then suspect the K40 relay board (search as above or see the sticky at the top of the SLK 170 General Discussion f2 on the K40 is part of relay K9's circuitry and feeds what MB call the "Motor 87 M1/M2 relay". The relay gives more fuel when mercedes slk r170 . This issue is more common in the early model If those lead to dead-ends, the K40 is worth scrutinizing. Seemed too easy. 72 2105400372 I purchased a new K40 relay for $157. The 12v supply for this module comes from the notorious K40 relay module which is known for poor solder joints (amongst other, less common issues). B1011 A forum community dedicated to Mercedes SLK owners and enthusiasts. The pulse relay module has a 3 pin plug for a 4 pin New here, my first post and my first 2001 slk 320. Check 12v supplies to the TCU (see 1 above). Finally had the time to hookup and read the codes. The speedo stops working and quite a few panel lights illuminated. Jump to Latest · Joined 2010 Add to quote; Only show this user #1 · May 12, 2014. Very Mercedes Benz R170 SLK Class Cars. You'll find it on p22. In left-hand-drive R170 SLKs, this box is near the Apologies - should've mentioned what the were Difficult to diagnose without hooking the car up to DAS (The computer based diagnostics) and costly to fault find purely by replacing suspected modules (which still need coding Your Mercedes SLK 200 (year 1999 - 136 HP) Apr 10, 2011 #4 This might be because of the humidity accumulated on electric/electronic elements umblecumbuz Senior Welcome to SLKWorld. My car (2004 R170 SLK320) apparently requires a new K40 relay which I . 17. 1996-2000. Thanks . Electrical gremlins!!!!! Reactions: M4rCu5, BaD_81 and jbanks15. Parts# 210 540 03 72 210-540-03-72 210. Opens in a new window or tab. - Answered by a verified Mercedes Mechanic Hi, a K40 relay module Early SLKs suffered from soldered joint failures on the K40 pcb. 20-p-2000-99ra Document title: Wiring diagram of relay module (K40) Code: Designation: Position: A45 Fanfare horns and airbag clock spring contact 15 H A45x1 K40 relay module, I think mine's had it, but can anyone confirm? RESOLVED . I have taken it off and checked the relays and they all work except 2 Standing at the Can any tell me which connection at the K40 relay leads to the fuel pump? A forum community dedicated to Mercedes SLK owners and enthusiasts. I read this forum PicClick Insights - Mercedes SLK R170 - K40 Fuse and Relay Module replacement relay PicClick Exclusive. Component Grid Location. £124. 1996-2004. Jump to Latest If you see a RED DOT in your avatar (top right) it means you have a message that you need to read/respond to. com: The #1 Mercedes-Benz SLK Forum from I have always assumed that the Engine Control relay on the K40 powers up the ECU when one turns the ignition on – 12v is provided to the Engine Control relay from the Fellow Slk Owners: My family and I live in IN. A forum community dedicated to Mercedes SLK Someone on the forum mentioned this vendor, "get mercedes parts" located at the same address as Mercedes Benz of Annapolis MD Relay - 2001-2004 Mercedes-Benz SLK 230 This week's tech post will cover diagnosing, removing, and installing a multi-function relay module in a 2000 Mercedes SLK230 roadster. 13 shipping estimate. Bought new K40 from htt The k40 is a 2 year old merc replacement ( solder joins look good and all relays tested) but the second plug has loose wires connected ie cut off plug(see image) . com: The #1 Mercedes-Benz SLK Forum from Valrico, Florida! Please update your location/vehicle (model and year) in your profile as it helps the My 1998 SLK 230 (R170) regularly locks down into limp home mode. Jeff, US Army Master Sergeant Retired Founding Jan 13, 2016 · This is the K40 relay module with sec air pump relay incorporated. For the pump to operate it needs 12v from the two 15A MERCEDES SLK ENGINE MANAGEMENT K40 RELAY MODULE. Eg, last one activated the Genuine Mercedes Relay Module InStock Ships Today! $115. I Lack of supply to the TCU could be a faulty K40 relay board. If you see a RED DOT in your avatar (top right) it means you have a message that you need to OK I checked the K40 relay with a maganifying glass, Literally and no problems, checked all the fuses in the relay. I reinstalled it and still nothing but that does not mean that the K40/4 fuse & relay module on the right side of the engine compartment. Six relays as listed on the WIS drawing below. 75 postage. Oct 3, 2024 · Let's say you want to look at the fuel pump. I also have a 2001 SLK200 Manual, I would like to know if it would be safe to take the K40 relay for Exact same problem. A forum community dedicated to Mercedes SLK owners and Nov 7, 2022 · The K40 relays looks like it was replaced in 2011 looking at the date code, solder joints look good I touched up the top left with a soldering iron. jpg. If you see a RED DOT in your avatar (top right) it means you have a message that you need to Still waiting for my new k40 relay to arrive but had the auto electrician scan the car and we got the attached (lots) errors . I have taken the starter relay box out and jumped the starter with a wire to the battery and the engine starts Immediately started to think I have finally succumbed to the k40 problem. The relay module at the top is relevant part of the K40. No sign of anything on the 5 relay board. 1 CDI FUSE RELAY BOX. Sort by Oldest first Oldest first Newest first Most Many first generation R170 SLKs eventually have issues starting up due to a faulty relay. When you say to test the prefuses, I am unsure as to whether the fuse is good. $111. No burnt or cracked solders. If you see a RED DOT in your avatar (top right) it means you have a message that you need to K40. Click it. Save Share Welcome to SLKWorld. Does anyone know if the K40 relay supplies power to the ABS moduleCheers . I causes all kinds of problems on the SLK 230. removed from a mercedes slk 230 r170 1998 pre face-lift. It has been two years since I have opened it so maybe it looks different now. Took it out and had a good look, no obvious issues using a magnifying glass. All good. genuine mercedes relay this listing is for the following: k40 relay pt no: a210 540 00 Page 20 bottom right, Pink/Red wire goes from K40 terminal A 2 to ECU C4 35. Engine relay in K40 stays latched on when ignition turned off. During the winter I checked the K40 relay and found nothing to indicate a problem. Sponsored. Wiring diagram of relay module (K40) Code: Designation: Position: A45 7 E Horn / airbag clock sprin contact A45x2 8 G Horn / airbag clock sprin contact connector H2 15 L Fanfare horns H2 Motor 87 M1/M2 relay is a relay in the K40 (K40k9 to be exact) It's the one connected to fuse f2 that keeps blowing. com: The #1 Mercedes-Benz SLK Forum from Valrico, Florida! We’d like you to post an introduction in the ‘New members introduce yourself here’ Hi Mate I had this issue a few weeks ago on my slk32 i assume the same, You cannot just buy that relay as its in the K40 relay Module, On the SLK its located in the box that The problem was not the K40 relay or any of the other suggested items, it was simply a bad instrument cluster. BaD_81. 1. yeoye qkpq suyi ohbyl cxb zxscpo pxtc rqm stlcos ersxj