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E39 520i Silver


pvsilviu

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The M54 thermostat is both mechanical AND electrical. They often have a "soft fail" whereby they open too soon. Replace it and you'll see the temp gauge behavior go back to normal.
The electric part is there for the DME to open it even further under certain high load conditions.

E cam clara treaba, necesita inlocuire.

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La 325xi, cand l-am schimbat, m-am trezit cu acul ca se duce la vale si nici caldura nu am mai avut (in exterior si vreo 5 grade afara). Ramasese clar bocat pe deschis.

Mai verific sambata. 

Cert este ca nu a facut asa, am monitorizat-o de multe ori cu OBD II.

93-96 sau 96-99, la fel ca la cabrio.

Ventilatoarele merg amandoua si par sa functioneze normal.

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  • 2 weeks later...

Salutare,

Termostatul cred ca este ok. Azi dimineata am facut o plimbare in exterior de vreo 50 km. La 90 km/h, ventilatie la minim/caldura 23 grade interior, 93 grade. Cu ventilatia si caldura la maxim, 79/80 grade. In parcare, la relanti, 101. 5 grade in exterior. Acul statea nemiscat la 90 grade (masuratorile de mai sus facute cu OBD II).

Nu pot spune ca am sesizat pierderi de ulei pe undeva, posibil sa fi fost de la reparatii. Am sters bine, am dat cu break cleaner, am sters iar. Ramane de vazut.

Cred ca garnitura capac culbutori nu a fost schimbata niciodata (128500 km in bord). Am observat la un colt mici urme de ulei. O voi schimba curand, deocamdata nu e nimic grav. Este 300 lei OEM si vreo 50 lei toate garniturile de la suruburi (ca sa fac o treaba ca lumea). O voi schimba eu, am si cheie dinamometrica (de placere plus ca la service nu vor strange cu dinamometrica).

Am facut schimb de baterii. Totul ok dupa o saptamana. Deocamdata nu cumpar alta, cabrio are rca pana pe 15.11 si am de gand sa-l bag la hibernare pana in aprilie 2026. Are bateria  pe el (tine curent in ea, 12.5 v insa dupa ce pornesti, daca nu faci un drum mai lung nu mai duce inca o pornire). Alta, la primvara.

La capacele de la motor lipsesc 3 capacele din 4. Pe original 41 lei, 20 lei de la vaico. Asta e, nu cred ca gasesc in Craiova la dezmembrari (11121726089).

Ma tot gandesc la jante style 65 insa sunt exagerat de scumpe. Dar, arata si misto cu ele.

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