AAARRRHHH!!! Help Please Fuel Pump relay!!!

christopher.cross

Senior Member
Joined
Jun 6, 2007
Messages
63
Reaction score
0
Hi Members.
Please an anyone tell me if the fuel pump relay is a coloured box or is it the odd one out silver box inside the fuse box??? unfortunately the relays are not named? Also I was quoted £75.00 from G/Swedish??? This seems really high for a simple relay??????? :shock:
Many Thanks Chris
 

teddycatkin

Senior Member
Joined
Mar 7, 2008
Messages
2,093
Reaction score
5
Location
cheshire cheese country
Your Mercedes
W107-SL W124-220te W123-230e W201 2.0
Try a simple test -Take it out and the engine will turn over but not start ?
When you have found it bridge the pins and it will work again .
 

louwdj

Senior Member
Joined
Oct 11, 2008
Messages
48
Reaction score
0
If its the same relay as in the W123 range, it is far from a simple relay. It switches the fuel pump off in case of roll-over and could save lives. Bridging should only be done in a emergency. On the W123 its behind the glovebox, on the W460 above the accelarator pedal.

UKP75 sounds about the going rate. Check, it could just be a dry joint needing resoldering.
 

teddycatkin

Senior Member
Joined
Mar 7, 2008
Messages
2,093
Reaction score
5
Location
cheshire cheese country
Your Mercedes
W107-SL W124-220te W123-230e W201 2.0
Yes -Only Early 123 in back of glove box --later in engine compartment The sec , I think are under the bonnet as well and the bridging is only part of the test to find the fault ?
Dronsfields sell them secondhand (tested) around £20.
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
331
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
I have a feeling that it is just under the dash on a 126.

for testing purposes you can take it out and bridge pins number 7 & 8 this will run the fuel pumps all the time
 
OP
C

christopher.cross

Senior Member
Joined
Jun 6, 2007
Messages
63
Reaction score
0
  • Thread Starter
  • Thread starter
  • #8
Hi Members. sorry my car is a 1885 sec 380coupe.2 am now pretty sure its a silver relay at the very top of the fuse box under hood on the left. The pump is working (direct wire from battery)and I have checked earthing. hopefully new or tested 2nd hand relay will solve problem?Will let you know and will post pic soon as just had 3/4 respray.Thanks to all.Chris
 
OP
C

christopher.cross

Senior Member
Joined
Jun 6, 2007
Messages
63
Reaction score
0
  • Thread Starter
  • Thread starter
  • #10
Many thanks Members for help.
I have solved problem with a new fuel pump relay. For future reference it was the largest of the relays in the fuse box and it was a black 7 pin unit with kickdown written on the side.German and Swedish do not stock these but were helpful in pointing me to KMS in Park Royal who stock a good range of hard to source items for the 380 SEC.
Thanks again.... Chris
 


Specialist Classic Parts suppliers
SLS Im- & Export Handelsges.mbH, Industriestrasse 2 - 4, D-22885 Barsbuttel (bei Hamburg)
Tel. +49 (0)40 656 939-0, Fax +49 (0)40 656 939-399
Visit our website atwww.sls-hh-shop.deto view our comprehensive catalogue of parts for:
190SL (R121), 230 - 280SL (R113), 280 - 500SL/C (R/C107)
Good English spoken and friendly service to discuss your requirements.
Top Bottom